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

would it cost her to buy 18 copies at the same rate?

User Andreas Haferburg
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1 Answer

4 votes

Answer:

12 copies=$40

1 copy=$40÷12=$3.33

18 copies=$3.33×18=$60

User Jchrbrt
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