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Printjmc
prealgebra intermediate
Problem
Mary wants to buy one large pizza, one medium pizza, and three drinks. The drinks cost dollars each, the medium pizza costs two times as much as one drink, and the large pizza costs three times as much as one drink. If Mary started with dollars, how much money would she have left after making all of her purchases? Give your answer as an expression of .
Solution
Let's first look at how much total money Mary spent. Since drinks cost dollars, and she bought of them, she spent dollars on drinks. One drink costs dollars, so a medium pizza costs dollars and a large pizza costs dollars. Therefore, in total, Mary spent dollars.
Now, Mary had dollars to begin with, and she spent dollars, so she has dollars left.
Now, Mary had dollars to begin with, and she spent dollars, so she has dollars left.
Final answer
30-8p