Question 259912
 Mickey and Minnie both drive the same distance.
 By driving 25 mph faster, Mickey gets there in 3 hours, while it takes Minnie 5 hours. How fast does each drive? 
:
Let s = Minnie's speed
then
(s+25) = Mickey's speed
:
They are driving the same dist, write a distance equation: dist = time * speed
:
Min's dist = Mic's dist
5s = 3(s+25)
5s = 3s + 75
5s - 3s = 75
s = {{{75/2}}}
s = 37.5 mph is Minnie's speed
then
37.5 + 25 = 62.5 mph is Mickey's speed
:
;
Prove this by finding the distance of each
3*62.5 = 187.5 mi
5*37.5 = 187.5 mi