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Jeremiah's retirement party will cost $656 if he invites 82 guests. If there are 91 guests, how much will Jeremiah's retirement party cost? Assume the relationship is directly proportional.

Respuesta :

We can write a proportion to solve

82 guests 91 guests

------------------- = -------------

656 dollars x dollars

Using cross products

82x = 91 * 656

82x =59696

Divide each side by 82

82x/82 = 59696/82

x =728

The party with 91 guests will cost 728 dollars

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