Every evening jenna empties her pockects and puts her change in a jar. one week she had 38 coins, all of them dimes and quarters. when she added them up she had a total of 6.95Every evening jenna empties her pockects and puts her change in a jar. one week she had 38 coins, all of them dimes and quarters. when she added them up she had a total of 6.95

Answers

Answer 1

Answer:

17 dimes, 21 quarters

Step-by-step explanation:

I suppose you want to know how many dimes and quarters she had in her jar.

Let's say x = dimes and y = quarters.

We can make the following 2 equations:

1) x + y = 38 (number of coins in the jar)

2) 10x + 25y = 695 (a number of dimes plus a number of quarters sum up to 695 cents)

From 1), we can isolate y: y = 38 - x, and place that value in the second equation:

10x + 25y = 695

10x + 25 (38 - x) = 695

10x + 950 - 25x = 695, then we subtract 950 on both sides and simplify

-15x = -255

x = 17

So, Jenna had 17 dimes.

y = 38 - x, so y = 38 - 17 = 21

And she had 21 quarters.


Related Questions

A line intersects the point (3,-4)and has a slope of 17 .what is the slope - intercept equation for this line?

Answers

Answer:

The slope - intercept equation for this line is y = 17x - 55

Step-by-step explanation:

The general form of the slope-intercept form is

y = mx +b

where m is the slope and b is the y-intercept.

We are given slope m = 17

we need to find b the y-intercept.

To find y-intercept we would use point(3,-4) and formula

y = -4

x = 3

m = 17

b=?

y = mx + b

-4 = (17)(3) + b

-4 = 51 + b

b = -4 -51

b = -55

So, y-intercept is -55

The slope - intercept equation for this line is y = 17x - 55

When 60% of a number is added to the number, the result is 192

Answers

Answer:

the number (x) is 120.

Explanation:

100% + 60% = 160% = 1.6

(just multiply it by 1.6 because it is equal to 60%)

Final answer:

The equation for the problem can be expressed as x + 0.6x = 192. To solve for x, you simplify the equation and isolate x, resulting in the answer of 120.

Explanation:

This problem is a simple algebraic problem in which we're trying to find a number that satisfies a given condition. To solve this, we need to express the problem as an equation. Let's assume the number we're looking for is denoted as x.  So, according to the problem, we have the following equation:

x + 0.60x = 192

The steps to solve this equation are as follows:

Combine like terms: 1x + 0.60x = 1.60xTo isolate x, divide both sides of the equation by 1.60: x = 192 / 1.60Doing the division on the right side, we find x = 120, which is our number.

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Is every rectangle is a parallelogram?



True


False

Answers

Answer:

True

Step-by-step explanation:

Every rectangle is a parallelogram.

The answer would be true

given the inputs in the table, which function rule produces the outputs?

Answers

The linear graph y = 2x + 3 represents the relationship between the data provided.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have input and output in the table:

From the points:

(3, 9) and (6, 15)

[tex]\rm \left(y-9\right)=\dfrac{\left(15-9\right)}{6-3}\left(x-3\right)[/tex]

(y - 9) = 2(x - 3)

y = 2x + 3

Thus, the linear graph y = 2x + 3 represents the relationship between the data provided.

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Carla is cutting pieces of string that are exactly 24 3/8 in long how many pieces can she cut from a ball of string that is 100 ft​

Answers

Answer:

4 1/8 pieces

Step-by-step explanation:

Since you are using a string that is 100 ft. long then and you need exactly 24 3/8 ft. sections, you would do these calculations:

3/8 = 0.375

100/24.375 = 4.1026

.1026 = 1/8

4 1/8 ft long pieces

Answer:

The string is cut into 4.1025 pieces.

Step-by-step explanation:

We are given the following information:

Length of the string =  100 feet

Length of one piece = [tex]24\displaystyle\frac{3}{8} = \displaystyle\frac{195}{8} ~feet[/tex]

Number of pieces =

Formula:

[tex]\text{Number of pieces} = \displaystyle\frac{\text{Length of string}}{\text{Length of one piece}}[/tex]

Number of pieces =

[tex]\displaystyle\frac{100}{\frac{195}{8} } = \displaystyle\frac{100\times 8}{195}\\\\=\displaystyle\frac{800}{195} = 4\displaystyle\frac{4}{39} = 4.1025[/tex]

Thus, the string is cut into 4.1025 pieces.

Line CD passes through points C(1, 3) and D(4, –3). If the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b?

–5
–2
1
5

Answers

Answer:

5

Step-by-step explanation:

First we need to find the slope

m = (y2-y1)/ (x2-x1)

   = (-3-3)/(4-1)

  =-6/3

  = -2

Then we can use point slope form to make the equation

y-y1 = m(x-x1)

y-3 = -2(x-1)

Distribute

y-3 = -2x+2

Add 3 to each side

y-3+3 = -2x+2+3

y = -2x+5

Since this is in slope intercept form, y = mx +b, the y intercept is 5

Answer: D. 5

Step-by-step explanation: First we need to find the slope

m = (y2-y1)/ (x2-x1)

  = (-3-3)/(4-1)

 =-6/3

 = -2

Then we can use point slope form to make the equation

y-y1 = m(x-x1)

y-3 = -2(x-1)

Distribute

y-3 = -2x+2

Add 3 to each side

y-3+3 = -2x+2+3

y = -2x+5

Since this is in slope intercept form, y = mx +b, the y intercept is 5

Round 140.430 to the nearest whole number

Answers

140

Since .43 isn’t enough to round it up to 141 you have to round it down to 140 which is the nearest whole number

Answer:

140

Step-by-step explanation:

if you are rounding you round if 5 or over go up and if 4 or lower go down

Suppose an investment of $1700 doubles in value every 10 years how much is investment worth after 20 years

Answers

Answer:

doubles every 10 years

20 years, so it has doubled 2 times

1700 times 4=6800

it is worth $6800

Find the value of Q in the following system so that the solution to the system
is {(x,y) : x – 3y = 4} x - 3y=4
2x + Qy=8

Answers

Answer:

Q = -6

Step-by-step explanation:

If the solution of the system of equations is {(x, y): x - y = 4} - infinitely many solutions, then this system is consistent and dependent.

x - 3y = 4            multiply both sides by 2

2x - 6y = 8

Therefore Q = -6

Which of the following is an example of a proper fraction?
a) 7/6
b) 4/4
c) 4/3
d) 3/4

Answers

A proper fraction must have a denominator that is greater then the numerator.

If the numerator is the same as the denominator is the same then it can be simplified to 1.

If the numerator is greater than the denominator then the fraction is improper.

This means that the answer must be D) 3/4

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

d

Step-by-step explanation:

A proper fraction is when the numerator is less than the denominator

example is 2/3, 100/200 etc.

Which equation represents a line that passes through (5, 1) and has a slope of 1/2?


y – 5 = 1/2(x –1)

y – 1/2 = 5(x –1)

y – 1 = 1/2(x –5)

y – 1 = 5(x-1/2)

Answers

Answer:

The correct answer is C

Step-by-step explanation:

If a straight line passes through [tex](x_1,y_1)[/tex] and has a slope of [tex]m[/tex] , its equation is;

[tex]y-y_1=m(x-x_1)[/tex]

In this case, we have [tex](x_1,y_1)=(5,1)[/tex] and [tex]m=\frac{1}{2}[/tex].

To find the required equation: you have to substitute [tex]x_1=5,y_1=1[/tex] and [tex]m=\frac{1}{2}[/tex] into the equation to obtain:

[tex]y-1=\frac{1}{2}(x-5)[/tex]

The correct answer is C

Find the coordinates of the point where y-4x=1 crosses the y axis

Answers

Answer:

(0, 1)

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

y - 4x = 1 ( add 4x to both sides )

y = 4x + 1 ← in slope- intercept form

with y- intercept c = 1 ⇒ (0, 1) ← coordinates of y- intercept

The coordinates of the point where y-4x=1 crosses the y axis is (0, 1)

The following information should be considered:

The equation of a line in slope - intercept form is  y = mx + c Here m is the slope and c the y- intercept.Now y - 4x = 1.So here we have to add 4x to the both sides. So, y = 4x + 1.Now the coordinates is (0,1)

Therefore we can conclude that The coordinates of the point where y-4x=1 crosses the y axis is (0, 1)

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What is the way to solve this one? Please explain how you got your answer.

Answers

Since both of the quotients have the same denominator keep it still

Minus numerator

8x-5 -(3x+7)
8x -5 -3x -7

5x -12/x-1


C is the answer hope this helps!

Please mark me as brainliest if you can, I really appreciate it!

Answer:

[tex]\frac{5x-12}{x-1}[/tex]

Step-by-step explanation:

[tex]\frac{8x-5}{x-1}[/tex]-[tex]\frac{3x+7}{x-1}[/tex]

= [tex]\frac{8x-5-3x-7}{x-1}[/tex]

= [tex]\frac{5x-12}{x-1}[/tex]

Which fraction is between 0 and 1/2

Answers

The Fraction that is between 0 and 1/2 is 2/10

The fraction 1/2 can also be written as 5/10. If you were to make a number line, you would be able to see that 2/10 is between. Here, let me order them from least to greatest:

< - 0 - - 2/10- - - 1/2- - 7/10- 3/4 - 8/10 - >

As you can see, 2/10 is between 0 and 1/2 (5/10).

What is the slope of the line passing through (5, -6) and (4, 3)

Answers

Answer:

-9

Step-by-step explanation:

Answer:

slope = - 9

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (5, - 6) and (x₂, y₂ ) = (4, 3)

m = [tex]\frac{3+6}{4-5}[/tex] = [tex]\frac{9}{-1}[/tex] = - 9

Which point on the x-axis lies on the line that passes
through point C and is parallel to lino AB?

Answers

Answer:

(2,0)

Step-by-step explanation:

For given line AB:

y-intercept = b = -2

slope = m = y₂-y₁/x₂-x₁

= -3/2-(-4) = -3/6 = -1/2

Equation of line AB:

y = (-1/2)x - 2

Finding equation of line that is parallel to line AB and passes through the point C(2,2):

Substituting the slope from line AB into the equation of the line

y = (-1/2)x + b.

Substituting the given point (-2,2) into the x and y values 2 = (-1/2)-2 + b.

Solving for b (the y-intercept) , we get b = 1

Substitute this value for 'b' in the slope intercept form equation y = (-1/2)x + 1.

For x-intercept of the line, we let y = 0

0 = (-1/2)x + 1

x = -1(-2/1)

x = +2

So, the point on the x-axis that lies on the line that passes

through point C and is parallel to line AB is (2,0).

choose the correct simplification of the expression (8x^2)^3.
A 24x^6
B 512x^6
C 512x^5
D 24x^5​

Answers

Answer:

The correct answer option is B. [tex] 5 1 2 x ^ 6 [/tex].

Step-by-step explanation:

We are given the following expression and we are to choose its correct simplification from the given answer options:

[tex] ( 8 x ^ 2 ) ^ 3 [/tex]

Applying the power to the terms inside the bracket to get:

[tex]8^3 \times x^{2.3[/tex]

Solving it further by applying the power property of exponent to get:

[tex] 5 1 2 x ^ 6 [/tex]

i think will be C yes iiiiiiiiiiiii

Which expression is equivalent to 6x+8?

Answers

The answer to the solution is
(FACTORING THE SOLUTION)
2 (3x + 4)

okay l gonna give you stright answer it B okay

4x-2y-x+5y-8
What is the coefficient of the x-term of the fully simplified expression ?

Answers

Answer:The coefficient of x is 3.Step-by-step explanation:Coefficient is a multiplicative factor in some term of a polynomial, a series, or any expression; it is usually a number, but may be any expression. In the latter case, the variables appearing in the coefficients are often called parameters, and must be clearly distinguished from the other variables. The coefficients of an algebraic term can be positive or negative, and this multiplies the unknown term. For example: In 2a, 2 is the coefficient of a;In x, 1 is the coefficient of x but it is not visible;In 2/3p, 2/3 is the coefficient of p;In -3f, -3 is the coefficient of f.In 2t + t -f + 2f + 8, 3 is the coefficient of x and 1 the coefficient of y  (2t + t = 3t, - f + 2f = f)Variable is a symbol, commonly a single letter, that represents a number, called the value of the variable, which is either arbitrary, not fully specified, or unknown. Making algebraic computations with variables as if they were explicit numbers allows one to solve a range of problems in a single computation. A typical example is the quadratic formula, which allows one to solve every quadratic equation by simply substituting the numeric values of the coefficients of the given equation for the variables that represent them. For example: 2k + 4, k is the variable;-4 - 5x, x is the variable.So,4x - 2y -x +5y - 8combine the like terms4x - x -2y + 5y -83x +3y -8In 3x - 8, 3 is the coefficient of x;In 3y - 8, 3 is the coefficient of y;x and y are the variables; and -8 is the constant coefficient.

What is the domain for the function f(x) = 2^x-5.

Answers

Answer:

X= All real Numbers

Step-by-step explanation:

Answer:

All real numbers

Step-by-step explanation:

The domain is the set of x values that we can plug into the function and it will have a y value.

The domain is the "allowed" x values of a function.

Exponential functions of the form  [tex]y=a^x[/tex], where a is a constant have domain of "all real numbers".

The function in this problem is of this form with a "-5" at the end, which shifts the function vertically 5 units down. This doesn't affect x values (or domain)

Hence, the domain is the set of all real numbers.

a boat is 60% full with 48. What is the maximum carrying capacity?

Answers

Answer:

80

Step-by-step explanation:

60%=48

10%=8

8*10=80

Answer:80

Step-by-step explanation:

60/100*x=48

60/100=3/5 so,

3/5*x=48

3x=48*5

x=240/3

x=80

therefore the maximum capacity is 80 people

Assume that a population of newly discovered small creatures called “porgs” in a remote island lays eggs with three distinct appearances: patterned with dots, white, or dark grey. Last year, the porgs laid 30 dotted eggs, 40 grey eggs, and 15 white eggs. You randomly selected 25 eggs, 10 of which were dotted, 13 were grey and 2 were white. Based on this information, what is the probability that you would only collect 2 white eggs?

Answers

you have a 1/12.5 chance of getting a white egg. so the theoretical possibility of getting only two white eggs is 1/156.25. so it is very unlikely to get two white eggs

Answer:

0.029

Step-by-step explanation:

Last year, the porgs laid 30 dotted eggs, 40 grey eggs, and 15 white eggs.

Total eggs = 30+40+15 = 85 eggs

White eggs = 15

So, probability of getting 1 white egg = [tex]\frac{\text{No. of white eggs}}{\text{Total no. of eggs}}[/tex]

                                                              = [tex]\frac{15}{85}[/tex]

Remaining white eggs = 14

Total eggs remaining = 84

Probability of getting 1 white egg on second draw   = [tex]\frac{14}{84}[/tex]

So, the probability that you would only collect 2 white eggs =[tex]\frac{15}{85} \times \frac{14}{84}[/tex]

                                                                                                   =0.029

Hence the probability that you would only collect 2 white eggs is 0.029.

PLEASE HELP QUICK Graph the line for y+2=32(x+4) on the coordinate plane. does anyone know the cordinates will mark brainliest.

Answers

Answer:  Graph (-4, -2) and (-2, 1)

Step-by-step explanation:

[tex]\text{The given equation is: }y+2=\dfrac{3}{2}(x+4)\\\\\text{which is of the form: }y-y_1=m(x-x_1)\\\implies(x_1, y_1)=(-4, -2)\quad and \quad m=\dfrac{3}{2}\implies (x+2, y+3)\\\\.\qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad (-4+2, -2+3)=(-2, 1)[/tex]

So, two possible points are (-4, -2) and (-2, 1).

Plot those two coordinates and draw a line through them.

Answer:

Got it right on the test, here is the answer.

Step-by-step explanation:

The parent function f(x)=x3 and a translation, g(x), are shown on the graph. Which represents g(x), then the translated function?

Answers

ANSWER

The correct answer is A

EXPLANATION

The parent function is

[tex]f(x) = {x}^{3} [/tex]

The function g(x) is obtained by shifting the graph of the parent function, 4 units left and 6 units up.

Therefore the transformation is of the form:

[tex]g(x) = f(x + 4) + 6[/tex]

Hence the transformed function has equation:

[tex]g(x) = {(x + 4)}^{3} + 6[/tex]

The correct answer is A

The resulting function g(x) after the translation will be g(x) = (x+4)³ + 6

Translation of functions

Translation is a way of changing the position of an object on an xy plane. According to the graph shown, the parent function of the graph is f(x) = x^3.

The translates function shows an upward translation by 4 units and horizontal translation to the left by 6 units. The resulting function g(x) after the translation will be g(x) = (x+4)³ + 6

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PLEASE ANSWER MY QUESTION I AM OFFERING 60 POINTS AND I REALLY NEED THE ANSWER
If you transform y = 2x^2 into y = 10x^2, which option below describes the effect of this transformation on the graph of the quadratic function along the y-axis?

A) The transformation stretches the graph by a factor of 5.

B) The transformation stretches the graph by a factor of 25.

C) The transformation shrinks the graph by a factor of 5.

D) The transformation shrinks the graph by a factor of 25.

Answers

The correct answer is a

Answer:

answer is a

Step-by-step explanation:

Solve 3x − 8 = 8 for x using the change of base formula log base b of y equals log y over log b.

Answers

Answer:

3^x-8=8 then x=log_3(16)

3^(x-8)=8 then log_3(8)+8

Step-by-step explanation:

So if it is 3^x-8=8

then 3^x=16

and then convert to logarithmic form you write it as log_3(16)=x

_3 means the subscript (the base) is 3

So if it is 3^(x-8)=8

then the log form is log_3(8)=x-8

add 8 on both sides log_3(8)+8=x

The value of x that satisfies the given equation is 9.8929

Logarithmic equation

From the question, we are to solve [tex]3^{x-8} =8[/tex] for x, using the change of base formula [tex]\log _{b} y = \frac{log _{} y}{log _{} b}[/tex]

From the given equation,

[tex]3^{x-8} =8[/tex]

Take [tex]log_3[/tex] of both sides,

That is,

[tex]\log _{3} 3^{x-8} = \log _{3} 8[/tex]

This becomes,

[tex](x-8)\log _{3} 3= \log _{3} 8[/tex]

Since [tex]\log _{x} x =1[/tex],

∴ [tex]\log _{3} 3 =1[/tex]

[tex](x-8)(1)= \log _{3} 8[/tex]

[tex]x-8= \log _{3} 8[/tex]

Using the change of base formula [tex]\log _{b} y = \frac{log _{} y}{log _{} b}[/tex]

[tex]\log _{3} 8=\frac{\log 8}{\log 3}[/tex]

Then,

[tex]x-8=\frac{\log 8}{\log 3}[/tex]

[tex]x-8=\frac{0.9031}{0.4771}[/tex]

x - 8 = 1.8929

x = 8 + 1.8929

x = 9.8929

Hence, the value of x that satisfies the given equation is 9.8929

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Four students found the mean of the data set 26, 31, 39, 30, 16, 16, 18, 38. Which student found the correct mean?
Ashrita's work
26 +31 +39+30+ 16 + 16+ 18+ 38
26.75
Collette's work
26 +3864 - 32
Daniel's work
26+31+39 + 30+ 16+ 18+ 38
198 - 28.29
Lora's work
30+ 16 - 46 - 23

Answers

Answer:

Ashrita

Step-by-step explanation:

The mean of any set of data is found by finding the summation of all the values in the set of data then dividing it by the number of entries in the data.

Mean=Σfx/Σf

Σf=26+31+39+30+16+16+18+38= 214

Σf= 8= the number of entries.

Mean=214/8=26.75

Ashrita's work was correct.

Answer:

Ashrita

Step-by-step explanation:

When you are finding the mean of some numbers you are meant to add all the numbers then divide by the amount of numbers

The number of miles driven varies directly as the number of hours driven. After
8
hours,
456
miles were driven.
How long, in hours, does it take to drive
627
miles? Do not include units in your answer.

Answers

Answer: 11

Step-by-step explanation:

You can set up a ratio.

8/456 = x/627

Cross multiply and divide

8 • 627 = 5016

5016 / 456 = 11

Final answer:

It takes 11 hours to drive 627 miles when the rate is 57 miles per hour, which is derived from the given information that 456 miles are driven in 8 hours.

Explanation:

To determine the travel time for 627 miles when we know that 456 miles were driven in 8 hours, we can use the concept of direct variation. With direct variation, if two variables vary directly, as one increases, the other also increases by a constant multiplier known as the constant of variation (k). In this case, the distance traveled varies directly with the time spent driving.

First, we need to determine the rate of driving based on the information provided:

Distance (d) = 456 milesTime (t) = 8 hoursRate (r) = d/t = 456 miles / 8 hours = 57 miles/hour

Now we can use the rate to calculate the time required to drive 627 miles:

Distance (d) = 627 milesRate (r) = 57 miles/hourTime (t) = d/r = 627 miles / 57 miles/hour = 11 hours

It would take 11 hours to drive 627 miles at that rate.

Two rigid transformations are used to map JKL To MNQ-
The first is a translation of vertex L to vertex Q. What is the
second transformation?
a reflection across the line containing LK
a reflection across the line containing jk
a rotation about point l
a rotation about point k

Answers

Answer:

Step-by-step explanation: it’s c

Answer:

C. a rotation about point L

Step-by-step explanation:

The snack bar at the school purchases water bottles at wholesale and then marks them up to make a profit. It marks up the water bottles by 33 percent, an amount of $0.28. Percents Total 33% 33% 33% 100% $0.28 $0.28 $0.28 What was the wholesale price of each water bottle? $0.56 $0.84 $0.93 $1.12

PLS HELP QUICK IM TIMED!!!!

Answers

Answer:

Say that the price at the whole for a bottle is some x

We know that the Snack Bar sold them at 33% profit which is in dollars $0.28

i.e 33% x=0.28

so now its a matter of finding what x is 

writing this in algebraic form

0.33x=0.28

divide both sides of the equation by 0.33

0.33x/0.33=0.28/0.33

Therefore x=0.85 roughly

so the price per bottle at the whole sell is 85 cent

the snack bar is selling it for 1.13 dollars

assuming no tax applied 

Step-by-step explanation:

Answer:

0.84 (B)

Step-by-step explanation:

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Each croquet ball in a set has a mass of 0.52 kg. The green ball, traveling at 11.3 m/s, strikes the blue ball, which is at rest. Assuming that the balls slide on a frictionless surface and all collisions are head-on, find the final speed of the blue ball in each of the following situations: a) The green ball stops moving after it strikes the blue ball. Answer in units of m/s. Grace period is a period of time before the credit card company starts charging late fees.TrueFalse Which statement best applies the behaviorist theory to explain the association between age and DMQ scores? Compared to younger participants, older participants: A.have had more experiences in which they have been punished for risky behaviors. B.are less prone to the effects of peer pressure. C.have a more mature prefrontal cortex that inhibits impulsive behavior. D.have a more developed superego that inhibits the impulses of the id. A 298 lb person must receive Heparin, determine the number of units given every hour (Heparin 8.0 units/kg per hour). Enter your answer with 1 decimal place and no units (the understood unit in this problem is units). What is the difference between a strong acid and a weak acid?There is no difference between a strong acid and a weak acid because they are both acids.A strong acid will react with a base. A weak acid will not. A strong acid will produce a larger amount of ions than a weak acid. A strong acid will produce a smaller amount of ions than a weak acid. What is a nerve?A. a long cell that carries nutrients throughoutthe bodyB. a branched projection at the end of a cell thatconducts electricityC.a cordlike cell that carries signals throughoutthe bodyD. a thin layer of material that transmits electricalsignals Which fact from the Tinker v. Des Moines court decision best supports thereasoning that the conduct of the student protesters was protected by theFourteenth Amendment, which prohibits deprivation of life, liberty, orproperty?OA. The record shows that students in some of the schools worebuttons relating to national political campaigns, and some evenwore the Iron Cross, traditionally a symbol of Nazism.OB. On the other hand, the Court has repeatedly emphasized the needfor affirming the comprehensive authority of the States and ofschool officials, consistent with fundamental constitutionalsafeguards, to prescribe and control conduct in the schools.C. The action of the school authorities appears to have been basedon an urgent wish to avoid the controversy which might resultfrom the expression, even by the silent symbol of armbands, ofopposition to this nation's part in the conflagration in Vietnam.D. That they are educating the young for citizenship is reason forscrupulous protection of Constitutional freedoms of the individual.if we are not to strangle the free mind at its source and teachyouth to discount important principles of our government as mereplatitudes. 3. A hardware store sells three types of shovels, spade, flat, and square. The spade costs $16.00, the flat costs $9.60, and the square costs $12.80 each. The store keeps an inventory of 80 shovels. They always buy twice as many spade shovels as square. One day, after selling out of shovels, the store had receipts totaling $1,072.00. Find how many of each type of shovel were sold that day.a. Write a system of equations to represent the information given.b. Put the system into a matrix. Name the matrix using dimensions.c. What is the determinant of the coefficients?d. Use Cramers rule to solve the system.e. If the store doubled all prices and inventory, what would the new matrix be? Eduardos average speed on his commute to work was 55 miles per hour. On the way home, he hit traffic and only averaged 40 miles per hour. If the round trip took him 1.25 hours, which expression represents the distance, in miles, for his trip home that is missing from the table?t 1.251.25 t40(1.25 t)40(t 1.25) What valve prevents back flow into the left ventricle of the heart? A) pulmonary valve B) mitral valve C) tricuspid valve D) aortic valve Which of the following is true of the peace treaty?A. Russia lost more territory than Germany.B. Germany was allowed to keep Alsace-Lorraine.C. Italy gained all of the Austrian territory. A tree that is 14 feet tall casts a shadow that is 30 feet long. Find the angle of the elevation from the top of the shadow to the top of the tree. Round to the nearest degree. There are 2 cups in 1 half quart of milk. How many cups are in 1 quart of milk?There are cups in 1 quart of milk. y=12x + 18If the value of x increases by 1, what happens to the value of y? Which scenario would most likely occur in an underdeveloped nation?A) a local government approves plans to build an advanced mass-transit systemB) a new factory most employs laborers who have worked on farms their entire livesC) a high school gives all its students expensive tablet computers to aid in their studies D) a farming community struggled to produce enough food to feed its members for a full year Question 27 of 281 PointWhat is the slope of the line shown below?(3,-2)(2,-4) PLEASE HELP if AD=2/3AB, the ratio of the length BC to the length of DE is what? A. 1/6B. 1/4C. 3/2D. 3/4 When did lyndon b johnson became president Which of the regulations is not designed to protect the environment What is the solution set for the open sentence, using the given replacement set ? 5x7=8 ; {1, 2, 3, 4} ? x = 1 x = 2 x = 3 x = 4