Chapter 11.9, Problem 36SR

To determine

To calculate the time taken to run 5 miles.

Answer to Problem 36SR

  $37\frac{1}{2}$ minutes.

Explanation of Solution

Given information:

In 25 minutes, Jeremy can cover $3\frac{1}{3}=\frac{10}{3}$ miles.

Formula used:

Concepts of time, distance and speed.

Calculation:

  $\frac{10}{3}$ miles in covered by Jeremy in 25 minutes.

So, to cover 1 mile, Jeremy would take $\frac{25}{\frac{10}{3}}$ minutes.

  $\frac{25}{\frac{10}{3}}=\frac{25\times 3}{10}$

On simplifying the same.

  $=\frac{15}{2}$ minutes.

Hence, to cover 5 miles, Jeremy would require:

  $=\frac{15}{2}\times 5$

Multiple the number of miles with the number of minutes requires to cover 1 mile.

  $=\frac{75}{2}$

On converting the fraction,

  $=37\frac{1}{2}$ minutes.