sasha10 sasha10

09-04-2016
Mathematics

contestada

Tony worked 4 2/3 hours on his science project. Sonia worked 1 1/4 times as long on her science project as Tony did. For how many hours did Sonia work on her science project.

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AshyAsh1 AshyAsh1

09-04-2016

change into mins
4=240m 2/3=40m =1=60 1/4=15m
240+40=280mins
60+15=75mins
280×75=21000mins

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