Question

Justin drives 7.5 miles in 15 minutes. If he drove three hours in total at the same rate, how far did he go?

Answer 1

Answer:

Justin drove 90 miles in 3 hours.

Step-by-step explanation:

Given that:

Justin drives 7.5 miles in 15 minutes.

Speed of Justin = $\frac{7.5}{15}$

Speed of Justin = 0.5 miles per minute

For speed in hours, we will multiply by 60

Speed of Justin = 0.5 * 60 = 30 miles per hour

Distance covered in 3 hours = 30 * 3 = 90 miles

Hence,

Justin drove 90 miles in 3 hours.

Answer 2

The total distance covered by Justin at the same rate is equal to 90 miles.

Given the following data:

• Distance A = 7.5 miles

• Time A = 15 minutes

• Total time = 3 hours

Conversion:

1 hour = 60 minutes

3 hours = 180 minutes

To determine the total distance covered by Justin at the same rate:

First of all, we would calculate the rate of Justin's speed as follows:

$Speed =\frac{distance}{time} \\\\Speed =\frac{7.5}{15}$

Speed = 0.5 miles per min.

For the total distance:

$Total\;distance = speed \times total\;time\\\\Total\;distance = 0.5 \times 180$

Total distance = 90 miles.

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