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Write a proportion to solve this problem: if 12 math books weigh 40 pounds, how much would 21 math books weigh
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Write a proportion to solve this problem: if 12 math books weigh 40 pounds, how much would 21 math books weigh

User Nelson Bwogora
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1 Answer

1 vote

1 math book is 3.33 pounds or 3 1/3

21x3 1/3 or 3.33 = 69.93

User Willoller
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