SOLUTION: A bicyclist rode into the country for 5 h. In returning, her speed was 5 mi/h faster and the trip took 4 h. What was her speed each way?

Algebra ->  Linear-equations -> SOLUTION: A bicyclist rode into the country for 5 h. In returning, her speed was 5 mi/h faster and the trip took 4 h. What was her speed each way?       Log On


   

Question 85882: A bicyclist rode into the country for 5 h. In returning, her
speed was 5 mi/h faster and the trip took 4 h. What was her speed each way?
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
DISTANCE = RATE TIMES TIME
5R=4(R+5)
5R=4R+20
5R-4R=20
R=20 MILES PER HOUR IS THE RATE.
PROOF
5*20=4(20+5)
100=4*25
100=100