Question 1159721

Two joggers set out at the same time from their homes 84 miles apart. They agree to meet at a point somewhere in between in four hours. If the rate of one is 3mph faster than the rate of the other.
<pre>Let speed of slower jogger be S
Then speed of faster jogger = S + 3
We then get the following DISTANCE equation: 4S + 4(S + 3) = 84
4S + 4S + 12 = 84
8S = 72
Speed of slower jogger, or {{{highlight_green(matrix(1,6, S, "=", 72/8, "=", 9, mph))}}}
You should be able to find the faster jogger's speed.