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2 years ago

15

Mr. william phisics class lasts 7/8 of an hour, 3/10 is used on arming up . How many minutes do they take to warm up..NOT FRACTI

ONS, minutes PLEASE HELP

1 answer:

pychu [463]2 years ago

5 0

7/8
3/10 of 7/8 means 3/10 times 7/8=21/80

1hour=60mins
60 times 21/80=1260/80=15.75

answer is 15.75 mins

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Learn more about constant of proportionality here:

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