Chapter 1.4, Problem 18OE

To determine

To find: the distance jogs by mike if he jogs for half an hour at $y\text{ mi/h}$

Explanation of Solution

Given information :

  $\frac{y}{2}\text{ miles}$

Concept used:

  $\text{Distance = Speed }\times \text{ Time}$

Calculation:

Mike jogs for half an hour at $y\text{ mi/h}$

  $\begin{array}{l}\text{Time = 30 min =}\frac{30}{60}\text{hr}=\frac{1}{2}\text{hr}\\ \text{Speed = }y\text{ mi/h}\end{array}$

So, the distance is given by

  $\begin{array}{l}\text{Distance = }y\text{ mi/hr }\times \frac{1}{2}\text{hr}\\ \text{Distance = }y\frac{\text{mi}}{\text{hr}}\times \frac{1}{2}\text{hr}\\ \text{Distance = }\frac{y}{2}\text{miles}\end{array}$