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igor_vitrenko [27]
3 years ago
15

A construction company is moving large rocks. It takes 3/4 hour to move 12 rocks. The construction company has already moved 60

of the 144 rocks that need to be moved. How long, in hours, will it take the construction company to move the remaining rocks? *

Mathematics
1 answer:
Luden [163]3 years ago
3 0
First divide the rocks per 3/4 of an hour by 3 and multiply by 4 to get the production per hour. then subtract the already moved rocks from the total job and divide the answer by 16 (the rocks moved per hour) getting the time needed to move the rest

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