Question

Mike and Jamal are 9 miles apart, and are planning to meet up. Mike is walking at an average speed of 3 miles per hour to meet Jamal. Jamal is driving at an average speed of 25 miles per hour to meet Mike.Which equation can be used to find t, the time it takes for Mike and Jamal to meet?

Answer 1

D.

Explanation:

Answer 2

Mike is walking at 3 miles per hour, so in t hours he walks 3t miles.
Jamal is driving at 25 miles per hour, so in t hours he drives 25t miles.
They are 9 miles apart, so the sum of the distances they need to travel is 9 miles.

so 3t + 25t = 9