SOLUTION: Please help me solve this story problem--I am lost :( You jog at 6 miles per hour for 5 miles, then you drive another 5 miles in a car. With what average speed must you drive if

Question 1064882: Please help me solve this story problem--I am lost :( You jog at 6 miles per hour for 5 miles, then you drive another 5 miles in a car. With what average speed must you drive if your average speed for the entire 10 miles is to be 10.8 miles per hour?

Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!

             SPEED      TIME      DISTANCE

On Foot      6          5/6         5

By Car       r          5/r         5

Total                 5/6+5/r      10

Distance divided by time is rate.

Multiply left and right by 54r.

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