Jack spends 1 1/2 times as long on his homework as Jill.
Last week, Jill spent 8 1/2 hours doing homework.
How long did Jack spend doing homework?

12 3/4 hours

Step-by-step explanation:

Jack spends 1 1/2 times as long on his homework as Jill .

Jill spends 8 1/2 in doing his home work .

Time spent by jack in doing his homework is jacks time multiplied by Jill’s

That’s

1 1/2 x 8 1/2

Change to improper fractions.

We have,

3/2 x 17/2

Multiply through

51/4 = 12 3/4

Jack spends 12 3/4 hours in doing his homework

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )

answer: 819.89 miles across america

step-by-step explanation: