SOLUTION: One car travels 310 miles in same amount of time it takes a second car traveling 7 miles per hour slower than the first to go 275 miles. What are the speeds of the cars?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: One car travels 310 miles in same amount of time it takes a second car traveling 7 miles per hour slower than the first to go 275 miles. What are the speeds of the cars?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 812278: One car travels 310 miles in same amount of time it takes a second car traveling 7 miles per hour slower than the first to go 275 miles. What are the speeds of the cars?

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
r*t=310,
(r-7)*t=275
5r*t-7t=275
r = 62, t = 5
r-7=55