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Terry has completed 15 homework problems, and Susan has completed 9. Terry is completing 10 problems per hour, and Susan is completing 12 per hour. After how many hours will Terry and susan have completed the same number of problems?

William Cain

in Mathematics

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Jeffrey Rodriguez on October 13, 2018

Let the number of hours that it took to have completed the same number of problems x, then15 + 10x = 9 + 12x12x - 10x = 15 - 92x = 6x = 6/2 = 3After 3 hours, must have completed the same number of tasks.


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