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April 18, 2015

Homework Help: Math

Posted by Anonymous on Monday, September 16, 2013 at 12:29pm.

You are buying gifts for 10 people. You decide to buy each person either a CD or a DVD. A CD costs $12 and a DVD costs $20.

Write and simplify an expression in terms of c for the total cost of all the gifts you buy.


My answer- My expression is 12c + 20(10-c). When I use the distributive property, I get 12c + 200 - 20c. Now, when I simplify this even further, I get 32c + 200, which is not making sense.

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