SOLUTION: Rational expression 9. When travelling at a fixed speed, travel time is directly proportional to distance travelled. If you go 120 miles in 3 hours, how long would a trip of 200

Algebra ->  Rational-functions -> SOLUTION: Rational expression 9. When travelling at a fixed speed, travel time is directly proportional to distance travelled. If you go 120 miles in 3 hours, how long would a trip of 200      Log On


   



Question 635757: Rational expression
9. When travelling at a fixed speed, travel time is directly proportional to distance travelled. If you go 120 miles in 3 hours, how long would a trip of 200 miles take?
Thank you for help in advance greatly appreciated

Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT OR D/T=R.
120/3=40 MPH.
OR D/R=T.
200/40=5 HOURS TO TRAVEL 200 MILES.