jamalnellum56
04.10.2019 •
Mathematics
Jack spends 1 1/5 as long as jill.last week jill spent 5 1/2 hours doing homework.how long did jack spend doing homework
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Ответ:
jill spent 2.5+1/2=11/2
1 1/5=1.5+1/5=6/5
11/2-6/5
11.5/2.5-6.2/5.2
55/10-12/10
43/10=4 3/10 Jack
Ответ:
20
Step-by-step explanation: