ieshafrost12 ieshafrost12

20-12-2017
Mathematics

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A box of 15 cookies costs $9. What is the cost for 1 cookie?

Respuesta :

20-12-2017

Let's set up a proportion. (We will call our answer x.)

15 cookies / 9 dollars = 1 cookie / x dollars
15x = 9
x = 9/15 dollars

x = 60 cents

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amp2478 amp2478

20-12-2017

$9.00/15 cookies =$.60

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