Question

Jason ran for 5 miles. He ran the first 3 miles at an average rate of 8 miles per hour, and then he ran the final 2 miles at an average rate of 6 miles per hour. What is Jason’s average speed for the entire 5 miles?​

Answer 1

Answer:

Step-by-step explanation:

jason ran the first 3 miles at 8mil/hr ie; so it took him 3/8 hrs to run 3 miles.

jason ran the final 2 miles at 6mil/hr ie; it took him 2/6 hrs to run 2 miles

the total time he took to run 5 miles will then be; $\frac{3}8} +\frac{2}{6} = \frac{17}{24}hrs$

if we divide distance/time we get his speed/velocity;

ie, 5/(17/24) = 6.47mil/hr