Question

Two cars leave towns
570
kilometers apart at the same time and travel toward each other. One car's rate is
12
kilometers per hour more than the other's. If they meet in
3
hours, what is the rate of the faster car?

Answer 1

To determine a rate in this instance, apply the quantity over a time interval (speed):
\[\large\ \frac{ΔX}{ΔT}\]
Where "x" represents the kilometers. Let "t" be the duration.

Answer 2

Ideally, because you're given a rate, set up a proportion and solve for the other variable (rate of the faster car).