zxcjpbwqs5 zxcjpbwqs5

16-11-2020
Mathematics

contestada

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 copies at the same rate?

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lynn18202 lynn18202

16-11-2020

3.33 since we know 12 is for 40 we can set up an equation

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16-11-2020

40/12=3.33
3.33x18= 59.94

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