Modeling and Solving Work Problems  TOPIC_SOLVED

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.

Modeling and Solving Work Problems

Postby onpointe5678 on Mon Oct 03, 2011 1:30 pm

Please help!!!

"Jace can run twice as fast as he walks. He runs 24 miles and walks for 16. The total time to complete the trip was 10 hours. How many hours did Jace walk?"

Thanks!
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Postby stapel_eliz on Mon Oct 03, 2011 4:26 pm

onpointe5678 wrote:Jace can run twice as fast as he walks. He runs 24 miles and walks for 16. The total time to complete the trip was 10 hours. How many hours did Jace walk?

To learn how to set up and solve this sort of "uniform rate" exercise, please try this lesson. Once you have learned the basic terms and techniques, please attempt the exercise, starting with the usual set-up:

. . .walking:
. . . . .distance: 16
. . . . .rate: r
. . . . .time: 16/r

. . .running:
. . . . .distance: 24
. . . . .rate: 2r
. . . . .time: ??

Complete the table, set up the equation, and so forth. :wink:
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Re: Modeling and Solving Work Problems

Postby onpointe5678 on Mon Oct 03, 2011 7:27 pm

THANK YOU!! I wish my textbook had been this informative. :-P
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