Asked by Sierra Elizabeth

Terry has completed 15 homework problems, and Susan has competed 9. Terry is completing 10 problems per hour and Susan is competing 12 problems per hour. After how many hours will terry and susan have completed the same number of problems ??
Answered by Damon
terry = 15 + 10 t
susan = 9 + 12 t

so
15 + 10 t = 9 + 12 t

2 t = 6
t = 3 hours
Answered by Sierra Elizabeth
@damon so 3 hours ?
Answered by Damon
Yes, but figure out why.
Answered by Sierra Elizabeth
Um because at 3 hours they have the same amount of problems done.
Answered by Damon
Exactly
Answered by Sierra Elizabeth
@damon thank you
Answered by Sweaty Nuts
The answer is 10 hours got 100%
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