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3 years ago

there is a ratio of 5 boys to 3 girls in the chorus. They are 24 boys in the chorus. How many girls are there?

2 answers:

7 0

Ok, so at first this question seems tricky, since 5 does not go into 25. However, you can't have a percentage of 1 person. Since 5 goes into 25 5 times, then we will go with that. So multiply 3 x 5 to get 15 girls. Because you can't have a fraction of a single person.

Kobotan [32]3 years ago

7 0

You have to use proportion for this problem, so you do

5 boys = 3 girls
24 boys = ? girls
24 times 3 equals 72. 72 divided by 5 equals 14.4. You have to round this answer to get 15 girls.
Hope this helped :D

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mixas84 [53]

Answer:

a) 7/4 b) 15/2

Step-by-step explanation:

a) Scale Factor = Image / Object

Take the side of Triangle ABC that's BC Why? Because it corresponds with the Image Triangle ADE's DE

= 21/12 = 7/4

b) 7/4 = 10+ x / 10

Cross Multiply

= 4 ( 10 + x ) = 70

= 40 + 4x = 70

= 4x = 70-40

= 4x = 30

= 4x/4 = 30/4

x = 15/2

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3 years ago

The parent function, f(x) = 5^x, has been vertically compressed by a factor of one-half, shifted to the right three units and do

KatRina [158]

Answer:

½[5^(x-3)] - 2

Step-by-step explanation:

After being compressed:

½(5^x)

3 units right

½[5^(x-3)]

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3 years ago

The table shows the number of cars washed each hour during a fundraiser hour 1, 22 cars, hour 2, 30 cars, hour 3, 35 cars, To th

dolphi86 [110]

The percentage increase in the number of cars from hour 2 to hour 3 is 16.7%

<h3>How to determine the percentage increase in the number of cars?</h3>

In this question, we have the given figures that can be used in our computation:

Hour 1 = 22 cars

Hour 2 = 30 cars

Hour 2 = 35 cars

We want to calculate the percentage increase in the number of cars

So, we make use of only the following parameters

Hour 2 = 30 cars

Hour 2 = 35 cars

These figures can be represented as

Initial amount = 30

Final amount = 35

The percentage of the increase of the cars is then calculated using the following percentage equation

Increase percentage = (Final amount - Initial amount)/Initial amount * 100%

Substitute the known values in the above equation, so, we have the following representation

Increase percentage = (35 - 30)/30* 100%

Evaluate

Increase percentage = 16.7%

Hence, the increase percentage is 16.7%

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1 year ago

The equation 4x - 8y =16 is converted from standard form to slope

shepuryov [24]

Your answer would be D. y= 1/2x-2.

The reason why this would be your answer because the slope intercept equation is y=mx+b.

To get 4x-8y=16 to slope intercept form, you first move the 4x to the other side of the equal sign, and that will turn it in -4x

You will be at -8y= -4x+16

The Y always has to be by itself, so you would divide everything by -8 (Fact: Y Can't be a negative).

You would end up with your answer y=1/2x-2.

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3 years ago

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fenix001 [56]

Answer:

ab//dc

Step-by-step explanation:

When m1 = mB

ab//dc

ad//bc

none

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3 years ago