A long distance runner starts at the beginning of a trail and runs at a rate of 4 miles per hour. One hour later, a cyclist starts at the beginning of the trail and travels at a rate of 20 miles per hour. What is the amount of time that the cyclist travels before overtaking the runner? Do not do any rounding.
how many hours?
@Will.H
Can you write an expression for the distance traveled by the runner? Can you write an expression for the distance traveled by the bicyclist?
no and no
idk how
I do not believe that. H is the number of hours we seek. Please use that to write and expression for the runner.
h +20=x
The runner travels at 4 miles per hour for exactly H hours. How far is that?
4+h=20?
A car travels at 40 miles per hour for exactly 2 hours. How far is that?
80
How did you determine that? 40 mph * 2 hrs = 80 miles. Notice how you used multiplication. Please try again. The runner travels at 4 miles per hour for exactly H hours. How far is that?
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