1) Jack spends 1 1/2 as long on his homework as Jill. Lask week, Jill spent 9 1/2 hours doing homework. How long did Jack spend doing homework?
2) The week before Jack spent 20 3/4 hours doing homework. How long did Jill spend doing homework? Please Help x

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Set up an algebra expression..
(Jill)1.5=(Jack) substitute in Jill's time last week

reversely substiute in Jack's time for 2 and solve for jill

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