SOLUTION: Wayne drove 3 hours on a freeway at 55 mi/hr and then 10 miles in the city at 35 mi/hr. What was his average speed?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Wayne drove 3 hours on a freeway at 55 mi/hr and then 10 miles in the city at 35 mi/hr. What was his average speed?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 705391: Wayne drove 3 hours on a freeway at 55 mi/hr and then 10 miles in the city at 35 mi/hr. What was his average speed?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT
D=55*3+35*10
D=165+350
D=515 TOTAL DISTANCE.
515/(3+10)=515/13=39.62 MPH. IS THE AVERAGE SPEED.