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Mars2501 [29]
2 years ago
14

If Jan can buy 12 copies of a certain book $40, what is the unit rate for cost per copy? How much would it cost her to buy 18 co

pies at the same rate?
Mathematics
2 answers:
goldfiish [28.3K]2 years ago
7 0
40/12=3.33
3.33x18= 59.94
crimeas [40]2 years ago
3 0
3.33 since we know 12 is for 40 we can set up an equation
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