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IgorLugansk [536]
3 years ago
12

The red race car drives 21 miles in 15 minutes. Find the miles per hour

Mathematics
1 answer:
irina [24]3 years ago
3 0

Answer:

1.4mph

Step-by-step explanation:

21 miles÷15minutes= 1.4 miles per hour

1.4 miles per hour ×15 minutes= 21miles

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Given:

The scale factor between two circles is \dfrac{2x}{5y}.

To find:

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Solution:

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The ratio of the areas of similar figures is equal to the ratio of squares of their corresponding sides or equal to the square of ratio of their corresponding sides.

The scale factor is the ratio of the corresponding sides.

Ratio of areas of circles = Square of scale factor between two circles

\text{Ratio of areas of circles}=\left(\dfrac{2x}{5y}\right)^2

\text{Ratio of areas of circles}=\dfrac{(2x)^2}{(5y)^2}

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Step 1. Divide both side by 16

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Step 2. Dimplify 200/16 to 25/2

25/2 = 6t - 13

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Step 9. Switch sides

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Step-by-step explanation:

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