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lilavasa [31]
4 years ago
7

A cross country runner Covers 2.5 miles in 12.5 minutes what is the runners average speed in miles per hour

Mathematics
2 answers:
stiks02 [169]4 years ago
8 0
I believe the answer is 5 because if however many times you can multiply 2.5 into 12.5, you get the answer of 5.
umka21 [38]4 years ago
6 0

<u>Answer</u>:

The average speed of the runner is 12 miles per hour.

<u>Step-by-step explanation:</u>

Given:

A cross country runner Covers =2.5 miles

Time Taken = 12.5 minutes  

To Find:

The runners average speed in miles per hour=?

Solution:

Now, we know that,

Distance = speed x time

Then, 2.5 miles = average speed x 12.5 minutes  

=>\frac{5}{2} miles = \text{{average speed}} \times  \frac{25}{2} minutes

=>\frac{5}{2} miles = \text{{average speed}}\times\frac{25}{2} \times \frac{1}{60} hours

=>\frac{5}{2} = \text{{average speed}}\times \frac{ 5}{2} }\times \frac{1}{12} hours

=>1 = \text{{average speed}} \times\frac{1}{12}

=>average speed = 12  

Hence, the average speed of the runner is 12 miles per hour.

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