Question

Jesse rode his bike for 2 hours at a constant rate. During the first 1.5 hours, he rode 15 miles. How many miles did jesse ride his bike during the last half hour? (enter an exact number.)

Answer 1

Jesse rode his bike 5 miles during the last half hour.

Explanation

Suppose, the constant speed of the bike is  $x$ miles/hour

Jesse traveled 15 miles for the first 1.5 hours. As $Speed= \frac{Distance}{Time}$ , so the speed of the bike will be: $\frac{15}{1.5} =10$ miles/hour

Now also, $Distance= speed*time$

So, the distance traveled for the last $\frac{1}{2}$ hour will be: $10*\frac{1}{2}= 5 miles$