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a machine can make 450 balls of yarn in 3 hours. at this rate , how long does it take the machine to 1,050 balls of yarn. using substiution?
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a machine can make 450 balls of yarn in 3 hours. at this rate , how long does it take the machine to 1,050 balls of yarn. using substiution?

User Redneb
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2 Answers

4 votes
it will take 7 hours:)
User Ron Fessler
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5 votes
7 hours. If 3 hours is 450, then 1 hour is 150. And, 1050 is 7

User Taemyr
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