Pencils and cents

If p perncils cost c cents how many pencils can be purchased for d dollars?

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Originally Posted by Godfather

If p perncils cost c cents how many pencils can be purchased for d dollars?

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Think of this in terms of units; we need to convert d dollars into pencils. Now, we know how to convert cents to pencils: c cents = p pencils. So:

d dollars x (100 cents/1 dollar) x (p pencils/c cents) = 100dp/c pencils.

-Dan