What is (x+7)3y equal to

Answer:

[tex]8(68) + 20[/tex]

[tex]8 \times 68 + 20[/tex]

[tex]544 + 20[/tex]

[tex]x = 564[/tex]

Answer:

170

Step-by-step explanation:

8/20=x/y

simplify. 2/5

2/5=68/y

68*5/2=y

68*5=340

340/2=170

y=170

The inequality 12x+9 ≥ 21  represents the minimum rate Chanita have to swim on second day to complete the distance.

Step-by-step explanation:

Given,

Length of English Channel = 21 miles

Distance covered on first day = 9 miles

Time to complete remaining distance on second day = 12 hours

Let,

x be the distance covered per hour on second day.

Time to cover distance * Distance covered per hour + Distance on first day ≥ Total distance

12x+9 ≥ 21

The inequality 12x+9 ≥ 21  represents the minimum rate Chanita have to swim on second day to complete the distance.

Keywords: addition, inequality

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Answer:

The answer is in the picture below. :)

Step-by-step explanation:

Answer: 0.007 and 2.9

Step-by-step explanation:

1) 0.07 = 10m

divide by 10 on both sides

= 0.007

2) 10.1 = t + 7.2

subtract 7.2 from both sides

2.9 = t

The values are;

1. m = 0. 007

2.  t = 2.9

First, we need to know that algebraic expressions are defined as expressions that are made up of constants, factors, variables and coefficients.

From the information given, we have that;

1.  0.07 = 10m

First, divide both sides by the coefficient of m, we get;

m = 0.07/10

Divide the values

m = 0. 007

2. 10.1 = t + 7.2

collect like terms

't = 10. 1 - 7. 2

subtract the values

t = 2.9

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Answer:

d) 729cm^3

Step-by-step explanation:

Length =27cm

Width = 1/3 of length

= 1/3 of 27cm = 1/3 × 27cm = 9cm

Height = 1/3 of width

= 1/3 of 9cm = 1/3 × 9cm = 3cm

Thus, length = 27cm; width = 9cm; height = 3cm

Hence, volume = length × width × height

= 27cm × 9cm × 3cm

= 729cm^3

Volume is a three-dimensional scalar quantity. The volume of the box is 729 cm³.

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

The volume of a room or box that is the shape of a rectangular prism is calculated by multiplying the length, width, and height of the prism.

Volume = Length × Width × Height

Given that length of the box is 27 cm. Also, it is mentioned that the width of a box is one third of its length. Therefore, the width of the box is,

Width of the box = (1/3) × 27cm = 9cm

Further, the height of the box is one third of its width. Therefore, the height of the box is,

Height of the box = (1/3) × 9cm = 3 cm

Furthermore, the volume of the box can be written as,

Volume of the box = Length × Width × Height

                               = 27cm × 9cm × 3cm

                               = 729 cm³

Hence, the volume of the box is 729 cm³.

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Answer: OPTION C.

Step-by-step explanation:

You can observe in the picture given in the exercise that  [tex]\angle E[/tex] is formed by two secants intersecting outside the circle.

It is necessary to remember that, by definition:

[tex]Angle\ formed\ by\ two\ Secants=\frac{1}{2}(Difference\ of\ Intercepted\ Arcs)[/tex]

You can also identify that the Intercepted Arcs are the following:

[tex]CD=110\°\\\\AB=30\°[/tex]

Then, knowing the measures of the Intercepted Arcs, you can substitute them into the equation shown before and then evaluate, in order to calculate the measure of  [tex]\angle E[/tex] , which is the angle formed by the intersection of the secants.

Therefore, you get:

[tex]m\angle E=\frac{1}{2}(110\°-30\°)\\\\m\angle E=40\°[/tex]

Answer:

Step-by-step explanation:

25m - 100 = 450

25m = 450 + 100

25m = 550

m = 550/25

m = 22 <==== 22 months

Answer:

8  rows of trees are there in the parcel.

Step-by-step explanation:

The number of trees planted in each row  = (3 x -2) trees

The total number of trees planted on  the land  = (24 x - 16)

Let us assume the total number of rows planted = m

Now,as we know:

The plants in each row x The number of rows = Total trees Planted

⇒   (3 x -2)  x (m)  =   (24 x - 16)

[tex]\implies m = \frac{24x-16}{3x-2}[/tex]

Simplifying for the value of m, we get:

[tex]m = \frac{24x - 16}{3x-2} = \frac{8(3x-2)}{3x-2} = 8\\\implies m = 8[/tex]

Hence,  the total number of rows planted = 8

Answer:

the answer is b

Step-by-step explanation:

Answer:

B. 0.38

Step-by-step explanation:

Answer:

The tire's weight in 1.146 pounds.

Step-by-step explanation:

Given:

There are 453.592 grams in one pound.

A semi-slick, Kevlar tire weighs about 520 grams.

Now, to find the tire's weight in pounds.

As, given 1 pound is 453.592 grams.

The weight of tire = 520 grams.

So, to get the tire's weight in pounds by using conversion factor:

1 pound = 453.592 grams.

Thus, 520 grams is:

[tex]\frac{520}{453.592}[/tex]

[tex]=1.146\ pounds.[/tex]

Therefore, the tire's weight in 1.146 pounds.

Answer:hey

Step-by-step explanation:

The slope of the line that passes through (–3, 3) and (1, –5) is –2

Solution:

Given slope of the line passes through two points (–3, 3) and (1, –5).

Formula for the slope of the line passes through two points is

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Here, [tex]x_1=-3, x_2=1, y_1=3,y_2=-5[/tex]

Substitute these in the slope formula, we get

⇒ [tex]m=\frac{(-5)-3}{1-(-3)}[/tex]

⇒ [tex]m=\frac{-5-3}{1+3}[/tex]

⇒ [tex]m=\frac{-8}{4}[/tex]

⇒ [tex]m=-2[/tex]

Hence, the slope of the line that passes through (–3, 3) and (1, –5) is –2.

Step-by-step explanation:

Given  expression

Number of insect                  Number of mayflies

         x                                                    [tex]\frac{3}{14}x[/tex]

According to problem

[tex]\frac{3}{14}x[/tex][tex]=15[/tex]

⇔[tex]x = \frac{15 \times 14}{3}[/tex]

⇔[tex]x = 70[/tex]

Answer:

Julie Spends $5.62, Micah spends $28.10 and Jeremy Spends $34.82

Step-by-step explanation:

If Micah spends 5 times as much as Julie, that is $28.10 because 5.62 x 28.10 = 28.10. If Jeremy spends 6.72 more than Micah, you would do 28.10 + 6.72, which is 34.82

I think I did the math correct but I may be wrong

Answer:

reeeeee

Step-by-step explanation:

ererrrrrrrrrrrrrrrr

Answer:

15.5 seconds.

Step-by-step explanation:

From the time the driver activated the brakes until he stopped, he travelled 76 - 14 = 62 meters.

During this time the car slowed  down from 8 m/s to 0 m/s.

Assuming the deceleration was constant during this time we can apply one of the equations of motion for constant  acceleration:

s = (u + v)t / 2   where u = initial velocity, v = final velocity, s = distance and t = the time, so:-

62 = (8 + 0)t/ 2

62 = 8t/2

4t = 62

t = 15.5 seconds.

Step-by-step explanation:

I think up to grade8 are middle school.

but I am not sure about my answer.

Answer:

6th, 7th, and 8th

Step-by-step explanation:

In America this is the standard middle school grades, however some schools diverge and also include 5th, or sometimes 9th. This, however,  is VERY uncommon.

Answer:

3/12

Step-by-step explanation:

{1, 2, 3, 4 ,5 ,6}

There are 3 even numbers and the coin would be 1/2.

3/6*1/2=3/12

The value of [tex]f(x+2)=2.1x+2.5[/tex]

Step-by-step explanation:

Given: The function [tex]f(x)=2.1x-1.7[/tex]

Using this formula, we need to find the value of [tex]f(x+2)[/tex]

Hence, we need to substitute [tex]x[/tex] by [tex]x+2[/tex] to find the value of [tex]f(x+2)[/tex]

[tex]f(x+2)=2.1(x+2)-1.7[/tex]

Multiplying the term [tex](x+2)[/tex] by [tex]2.1[/tex], we get,

[tex]f(x+2)=2.1x+4.2-1.7[/tex]

Adding the constant term,

[tex]f(x+2)=2.1x+2.5[/tex]

Thus, the value of [tex]f(x+2)[/tex] is [tex]f(x+2)=2.1x+2.5[/tex]

D) 2541

Step-by-step explanation:

The question is on multiplication,where you multiply the votes by the number of points and then add to find the total.

Given that the player got;

784 votes @ 3 points

89 votes @ 2 points

11 votes @1 point

Total number of points will be;

(784*3)+(89*2)+(11*1)=2541 points

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Answer:

3

Step-by-step explanation:

42 divided by 2 equals 21

21 divided by 8 equals 2.625

therefore, sharon must buy 3 packets of cheese.

Answer:

b and c

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

The variable x is in the base position so it is not exponential..

An exponential function is where the exponent is the variable , like for example 2^x.

The function f(x) = x^-3.141 is not an exponential function because in an exponential function, the base must be constant, and here x is the exponent, not the base.

The function f(x) = x−3.141 is not an exponential function. In an exponential function, the base is a constant and the exponent is the variable. Since the variable x is in the exponent here and the base is not a constant, we do not have an exponential function according to the definition.

Therefore, the correct answer is A: This is not an exponential function because the variable is in the base position and not in the exponent where we typically find the variable in exponential functions.

Answer:

The actual answer is C) 2, -3/400

Step-by-step explanation:

I hope this can help, I checked for the answer after the quiz.

Answer:

16

Step-by-step explanation:

swtich tk it be 10/160

10 into 160 is 0

subtract 160-0=1

move the 2nd digt down

16-10=6

bring down 3rd digit

=60

60 into 60 is 0

Answer:

Step-by-step explanation:

I think I've already solved this question.

Answer:

5/8

Step-by-step explanation:

First, you need to find a common denominator. In this case, the common denominator is 8. To change the second fraction into a fraction that you can easily subtract, you have to multiply the second fraction by 2/2 (which simplifies to one, so you're not changing the value of the fraction at all). Now, the equation reads, 7/8 - 2/8. From here, you just need to subtract the numerators, which ends up being 5/8.

Answer:

B. 5/8

Step-by-step explanation:

Between 7/8 and 1/4, the common denominator is 2. By multiplying 1/4 by 2, you'll get 5/8 after subtracting 2/8 from 7/8.

Distance between 2 points formula: √(x2 − x1)² + (y2 − y1)²

= √(7 - (-3))² + (-1 - 5)²

= √10² + -6²

= √100 + 36

= √136

≈ 11.662 (Note that this number is rounded because its a a non-terminating decimal).

Best of Luck!

Answer:

309

Step-by-step explanation:

8x + 300 = 2772

subtract 300 from both sides of the equal sign

8x = 2472

divide 8 from both sides of the equal sign

x = 309

The total no. of seats that have been sold is 309

What are linear equalities in one variable?

The linear equation in one variable is an equation that is expressed within the form of ax+b = zero, where a and b are integers, and x is a variable and has only one answer.

Conclusion: For example, 2x+3=8 is a linear equation having a single variable in it. therefore, this equation has only one solution, which is x = 5/2.

let the auditorium sell x seats for 8 dollars per seat.

In addition to that auditorium made 300 dollars.

The total money earned by the auditorium by selling x seats and the addition of 300 dollars is 2772 dollars.

8x + 300 = 2772

8x = 2772 - 300

8x = 2472

x = 2472/ 8

x = 309

The above question is an example of linear equalities in one variable.

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Answer:

1/7

Step-by-step explanation:

if 7 × (?) = 1, just take 1 and divide by 7. Thus, your answer is 1/7

Answer:

The number of general admission tickets sold was 21 and the number of VIP tickets sold was 12

Step-by-step explanation:

Let

x ----> the number of general admission tickets sold

y ----> the number of VIP tickets sold

we know that

[tex]x+y=33[/tex] ---> equation A

[tex]70x+105y=2,730[/tex] ----> equation B

Solve the system of equations by graphing

Remember that the solution is the intersection point both lines

using a graphing tool

The solution is the point (21,12)

see the attached figure

therefore

The number of general admission tickets sold was 21 and the number of VIP tickets sold was 12

Final answer:

To solve how many general admission and VIP tickets John sold, a system of equations is formed and solved, revealing that John sold 21 general admission tickets and 12 VIP tickets.

Explanation:

John is selling tickets to an event with two different pricing options, general admission tickets at $70 and VIP tickets at $105. He sold a total of 33 tickets resulting in revenue of $2730. To determine how many of each type of ticket he sold, we will use a system of equations.

Let x represent the number of general admission tickets sold and y represent the number of VIP tickets sold. We can then form the following two equations based on the information provided:

x + y = 33 (equation 1: total number of tickets sold)

70x + 105y = 2730 (equation 2: total revenue from ticket sales)

To solve this system, we can use the method of substitution or elimination. Here, we'll use substitution for simplicity. First, solve equation 1 for x:

x = 33 - y

Substitute this expression for x in equation 2:

70(33 - y) + 105y = 2730

Simplify and solve for y:

2310 - 70y + 105y = 2730

35y = 420

y = 12

Since y = 12, substitute y back into equation 1 to find x:

x = 33 - 12 = 21

Therefore, John sold 21 general admission tickets and 12 VIP tickets.

The fifth angle is 108 degrees

Solution:

Given that a pentagon has angle of 104, 102, 115 and 111 We have to find the angle of fifth angle

A pentagon is a five sided polygon

The sum of all the interior angles of a pentagon is 540 degrees

Given that,

Angle 1 = 104

Angle 2 = 102

Angle 3 = 115

Angle 4 = 111

Angle 5 = ?

Let the angle be "x"

So to find the fifth angle, add all the angles and equate to 540 degrees

Angle 1 + Angle 2 + Angle 3 + Angle 4 + Angle 5 = 540

104 + 102 + 115 + 111 + x = 540

432 + x = 540

x = 540 - 432

x = 108

Thus the fifth angle is 108 degrees