your brother traveled 200 miles in 4 hours to come home from school party. what's the average speed that he was traveling?​

Answer:

the 8×3×11 one

Step-by-step explanation:

we need to find the surface area of each.

[tex]2(lw + hl + hw)[/tex]

for the 10×10×3=

2(10×3+10×10+10×3)

2(30+100+60)

2(190)

380

for the 8×3×11

2(8×3+11×8+11×3)

2(24+88+33)

2(145)

290

Answer:

therefore the given equation is linear but it is not proportional.

Step-by-step explanation:

i) Is y = 4x - 5 proportional or non- proportional.

ii) therefore we can see that the equation is the same as the equation for a line, therefore the given equation is linear but it is not proportional.

The suit's final cost after a 30% markdown and an additional 20% off coupon is $168.

To find the suit's final cost, we first calculate the price after the 30% markdown. Subtracting 30% of $300 gives us: $300 - ($300 x 0.30) = $210. Next, we apply the additional 20% off coupon. Subtracting 20% of $210 gives us: $210 - ($210 x 0.20) = $168. Therefore, the suit's final cost is $168.

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Answer:

A system of equations is shown below: x + y = 3 2x − y = 6 The x-coordinate of the solution to this system of equations is _____. I'm thinking it could be X=3

Step-by-step explanation:

The value of the y-coordinate of the solution to the system of equations is; y = 1.

According to the question;

The equations given are;

By solving the pair of equations simultaneously; we have;

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Answer:

Therefore the expression for y when x is 2 is

[tex]y=\dfrac{48}{6}\times 2[/tex]

Step-by-step explanation:

Given:

y varies directly as x, and y is 48 when x is 6

Means  Direct Variation.

Therefore,

[tex]y=kx[/tex]

Where,

k = Constant of Proportionality

To Find:

y when x = 2

Solution:

First step we need to Find Constant of Proportionality

So put y = 48 and x = 6

Substituting the values we get

[tex]48=k\times 6\\\\k=\dfrac{48}{6}[/tex]

Now When x = 2 and [tex]k=\dfrac{48}{6}[/tex] y will be

[tex]y=\dfrac{48}{6}\times 2[/tex]

Therefore the expression for y when x is 2 is

[tex]y=\dfrac{48}{6}\times 2[/tex]

Answer:

[tex]y = \frac{5}{2} + \frac{19}{2}[/tex]

Step-by-step explanation:

From the question;

We are required to determine the equation of a line that passes through points (-7,-8) and (-5,-3).

Note that we can get the equation of a line when;

Therefore, since we are given two points where the line is passing through we can get the equation;

First, we determine the slope of the line;

slope = change in y ÷ change in x

That is;

[tex]slope=\frac{(-3--8)}{(-5--7)}[/tex]

        [tex]=\frac{5}{2}[/tex]

Second, we take another point (x,y) and one of the points, in this case, we take (-5,-3).

Therefore;

[tex]\frac{y+3}{x+5}=\frac{5}{2}[/tex]

[tex]2(y+3)=5(x+5)\\2y + 6 = 5x +25\\2y= 5x + 19\\y = \frac{5}{2} + \frac{19}{2}[/tex]

Therefore, the equation of the line is [tex]y = \frac{5}{2} + \frac{19}{2}[/tex]

Answer:

A

Step-by-step explanation:

f(x) + g(x)

= x² - 2x + 3 + x³ - x² + 4x ← collect like terms

= x³ + 2x + 3 → A

A charter is to a city government as a state constitution is to a state government.

Answer: Option D

Explanation:

Apart from the national level constitution, in the United States of America, every state has its own constitution. They are more detailed when compared to the national constitution as they tend to have more words or content when compared to the national level constitution.

The shortest one belongs to Vermont and the longest one belongs to Alabama. These constitutions tell how the government of each state must function and carry out its day to day activities.

Answer: B. y = 3x - 26

Step-by-step explanation:

The equation of line in slope - intercept form is given as :

y = mx + c , where m is the slope and c is the y - intercept.

To write the given equation in this form , all we need do is to make y the subject of the formula.

y - 7 = 3 ( x - 11 )

y - 7 = 3x - 33

add 7 to both sides

y = 3x - 33 + 7

y = 3x -26

Answer:

y = abx. Where a ≠ 0, the base b ≠ 1 and x is any real number ... When given a percentage explanation:

Answer: 25

Step-by-step explanation:

If two shapes are similar , then the ratio of their sides are also similar.

From the shapes given:

[tex]\frac{x}{50}[/tex] = [tex]\frac{20}{40}[/tex]

[tex]\frac{x}{50}[/tex] = [tex]\frac{1}{2}[/tex]

2x = 50

x = 25

Answer:

Part A) Circumference

Part B) C=π D

Part C) The distance traveled in one rotation is 628.32 feet

Step-by-step explanation:

Part A) we know that

The distance around the circle is equal to the circumference.

The Ferris Wheel have a circular shape

so

To find out the distance around the Ferris Wheel you should use the circumference

Part B) What is the formula needed to solve this problem?

we know that

The circumference is equal to multiply the number π by the diameter of the circle

so

C=π D

Part C) What is the distance traveled in one rotation?

we know that

One rotation subtends a central angle of 360 degrees

The distance traveled in one rotation is the same that the circumference of the Ferris wheel

we have

[tex]D=200\ ft[/tex] ----> diameter of the Ferris wheel

substitute in the formula of circumference

[tex]C=\pi (200)\\C=200\pi\ ft[/tex]

assume

[tex]\pi=3.1416\\C=200(3.1416)=628.32\ ft[/tex]

therefore

The distance traveled in one rotation is 628.32 feet

Answer:

56 grape

Step-by-step explanation:

160 fruit chews

25% are cherry, 40% are peach.....25 + 40 = 65%....so 65% of the fruit chews are NOT grape....meaning (100 - 65) = 35 % ARE grape.

so 35% of all the fruit chews are grape

35% of 160 = 0.35 * 160 = 56 are grape <===

The number of grape fruit chews in the display are 56.

To find the number of grape fruit chews in the display case:

Calculate the percentage of cherry and peach fruit chews: 25% cherry + 40% peach = 65% cherry and peach combined.

Subtract the combined percentage from 100% to find the percentage of grape fruit chews: 100% - 65% = 35% grape.

Calculate the number of grape fruit chews by finding 35% of 160 (total fruit chews): 35% of 160 = 0.35 x 160 = 56 grape fruit chews.

n(D) = 4

Step-by-step explanation:

Given Data:

Set D = {4, 6, 8, 10}

The number of elements in a set is called the cardinal elements (or) cardinality of the sets. This is denoted by n(A).

Here it is denoted by n(D).

The number of elements in the set D is 4.

The cardinality of the set is 4.

Hence, n(D) = 4.

For the given set D; the number of elements in the set D as denoted by n(D) is; 4.

According to the question;

The number of elements in a set is given by the notation n(D).

On this note, the set given in this question;

Ultimately, n(D) = 4 elements.

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Answer:

So the LCM of 6 and 9 is 18.

Step-by-step explanation:

List the factors of both numbers.

6: 6, 12, 18, 24, 30, 36,

9: 9, 18, 27, 36

The LCM of 6 and 9 is found by prime factorizing each number and taking the highest power of each prime that appears, resulting in an LCM of 18.

To find the LCM (Least Common Multiple) of the pair of numbers 6 and 9, we first need to prime factorize each number. The number 6 can be prime factorized as 2 times 3, and 9 can be prime factorized as 3 times 3 or 3². In order to find the LCM, we take the highest power of each prime number that occurs in the factorization of both numbers. So, we take 2 from the factorization of 6 (since it's the highest power of 2) and 3² from the factorization of 9 (since it's the highest power of 3), and multiply them together to get the LCM.

The LCM of 6 and 9 is 2 times 3² = 2 times 9 = 18.

Thus, the Least Common Multiple of 6 and 9 is 18.

Answer:

D

Step-by-step explanation:

Answer: Helping a fellow teen in need. I got you. lol. It's most likely A. Good luck miss Isabella

Step-by-step explanation:

ANSWER :

In order from least to greatest, it is 1/4, 3/5, 6/7

Step-by-step explanation:

If you make them all decimals, 1/4 is .25, 6/7 is around .8, and 3/5 is .6. In order form least to greatest, that is .25, .6, .8. That would mean in fraction form it is 1/4, 3/5, 6/7.

Answer:

Perimeter of triangle ABC = 5(3+13) = 5 x 16 = 80

Angle A = 30°, Angle B = 60°

Therefore Angle C = 90°

Pythagorean triplet = 40/3, 96/3, 104/3

Area of triangle ABC = 1/2 x b x h

= 1/2 x 40/3 x 96/3

= 1920/9

= 213.3 cm^2

Hope this helps!

The area of the triangle is found by recognizing that it is a special 30-60-90 triangle with sides in the ratio of 1: √3 : 2. The area, using these ratios and the given perimeter, is calculated as 25√3 square units.

This problem pertains to the area of a triangle. Because we know the two acute angles of triangle ABC, it is a 30-60-90 triangle. This is a special type of right triangle where the sides are in a particular ratio. In a 30-60-90 triangle, the sides across from the 30°, 60° and 90° angles are in the ratio of 1: √3 : 2.

Given that the perimeter is 5(3 + √13), we can set up the ratio for the sides as x, x√3, and 2x. Adding these together equals the perimeter: x + x√3 + 2x = 5(3 + √13). Solving this equation, we find x = 5.

The area of a triangle is calculated using the formula 1/2*base*height. Using the sides of the triangle, 5, 5√3, and 10, we will use the side across from the 90° angle (10) as the base and the side across from the 60° angle (5√3) as the height, giving us a triangle area of 1/2 * 10 * 5√3 = 25√3 square units.

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Answer:

its a desperctive property

Step-by-step explanation:

Answer:

A dependent variable is when it's variable depends on independent variable

First represent your 3 consecutive integers as follows.

X ⇒ first integer

X + 1 ⇒ second integer

X + 2 ⇒ third integer

Since their sum is 84, our equation reads x + (x + 1) + (x + 2) = 84.

Simplifying on the left side we get 3x + 3 = 84.

Now subtract 3 from both sides to get 3x = 81.

Dividing both sides by 3, we find that x = 27.

Finally, make sure you list all your answers.

If x is 27 then x + 1 is 28 and x + 2 is 29.

Answer:

27 + 28 + 29 = 84

Step-by-step explanation:

Let the three consecutive integers be x +1, x+2 and x+3

Thus,

[tex](x + 1) + (x + 2) + (x + 3) = 84[/tex]

Remove the brackets

[tex]x + 1 + x + 2 + x + 3 = 84[/tex]

Group the like terms

[tex]x + x + x + 1 + 2 + 3 = 84[/tex]

[tex]3x + 6 = 84[/tex]

To make 3x subject of formula, subtract 6 from both sides of the equation thus,

[tex]3x + 6 - 6 = 84 - 6[/tex]

[tex]3x = 78[/tex]

Divide through by 3

[tex] \frac{3x}{3} = \frac{78}{3} [/tex]

[tex]x = 26[/tex]

Since x = 26

[tex]x + 1 = 26 + 1 = 27[/tex]

[tex]x + 2 = 26 + 2 = 28[/tex]

[tex]x + 3 = 26 + 3 = 29[/tex]

Therefore, the three consecutive integers are 27, 28 and 29

Check

[tex]27 + 28 + 29 = 84[/tex]

Answer:

√41 or 6.40

Step-by-step explanation:

Pythagorean theorem:

a² + b² = c²

The third side is considered the hypotenuse (c²).

a² and b² will be represented by the legs.

a² = 4²

b² = 5²

c² = c²

4² + 5² = c²

16 + 25 = c²

31 = c²

√41 = c

[tex]\displaystyle\bf\\\textbf{A third side is hypotenuse.}\\\\The~length~of~the~hypotenuse=\sqrt{cat1^2+cat2^2}~~~(T.Pithagoras)\\\\The~length~of~the~hypotenuse=\sqrt{4^2+5^2}=\sqrt{16+25}=\boxed{\bf\sqrt{41}}[/tex]

The table referred to in the question is:

years=x population =y

 0                  40

 1                  62

 2                 96

 3                149

 4                231

Answer:

Explanation:

To discover the pattern followed by the data in the table, since it is indicated that the moose population is growing exponentially, you can find the multiplicative rate by dividing any two consecutive terms:

rate = 62/40 ≈ 96/62 ≈ 149/96 ≈ 231/149 ≈ 1.55

Thus, using the first ordered pair of the sequence, (0,40), you get the equation that models the exponential growing:

[tex]p(x)=A_0(1.55)^{x}\\ \\ 40=A_0(1.55)^0\\ \\ 40=A_0\times 1\\ \\ A_0=40\\ \\ p(x)=40(1.55)^x[/tex]

Then, to find the population of moose after 12 years, you substitute x = 12:

[tex]p(12)=40(1.55)^{12}=7,692[/tex]

Answer:

The answer is that 90 couples remain at the party after 11 pm

Step-by-step explanation:

Number of people who went to the couples only party at 9 pm = 250

Number of people who left the party at 11 pm = 70

How many couples remained at the party?

People that remained at the party = 250 - 70 = 180

Couples that remained at the party = 180/2 = 90

The answer is that 90 couples remained at the party after 11 pm

Answer:

Step-by-step explanation:

Total marble = 10

No. Blue = 6

No. Red = 2

No. Green = 2

Prob(1st Green) = 2/10 = 1/5

Now there are 9 marble left because it is not replaced back

Prob(2nd Red) = 2/9

Prob(1st green and 2nd red)

=1/5×2/9 = 2/45

=======================================

Work Shown:

d = distance from work to his house

x = speed when weather is good

y = speed when weather is bad

y = x-6 since he travels 6 mph slower

------------------------

On a good weather day, he travels for 4 hours and goes at x mph

distance = rate*time

d = r*t

d = x*4

d = 4x

----------------------

On a bad weather day, he travels 4.5 hours (half hour more than 4 hrs) and goes at y = x-6 mph

d = r*t

d = y*4.5

d = 4.5y

d = 4.5(x-6) .... replace y with x-6

d = 4.5x-27 .... distribute

----------------------

The values of d for both equations are the same, as the biker is traveling the same distance. So we can equate the two right hand sides (RHS) and solve for x.

4.5x-27 = 4x

4.5x-4x = 27

0.5x = 27

x = 27/0.5

x = 54

The biker's speed on a good weather day is 54 mph.

A bad weather day's speed would be y = x-6 = 54 - 6 = 48 mph.

----------------------

Now compute the value of d

d = 4x

d = 4*54

d = 216

The biker travels 216 miles on a good weather day

or,

d = 4.5*y

d = 4.5*48

d = 216

the biker travels that same distance on a bad weather day.

Answer:

B

Step-by-step explanation:

You can solve this by using the vertical line test. When you do the vertical line test, the vertical line should only pass through one point on the function. That means that there can to be only one value of x for every y. Set B is the only set where the x value doesn't repeat.

In the provided sets of ordered pairs, B and D are considered functions. A function is a relation where each input corresponds to exactly one output, and in sets B and D, this requirement is met.

In mathematics, a relation is considered a function if and only if every input (also called the domain or the x-coordinate) corresponds to exactly one output (also called the range or the y-coordinate). In the language of ordered pairs, an ordered pair presents itself as (x, y). If x repeats with a different y in the set, then the relation is not a function.

So let's examine the sets of ordered pairs given:

Therefore, the set of ordered pairs which are functions are B and D.

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Answer:

If it contains 14 nickels and 14 quarters then it would actually be $4.20 in total.

Step-by-step explanation: