12M + 10B = 38
20M + 15B = 60
solve it and get the ans
A certain store sells all maps at one price and all
books at another price. On Monday the store sold 12 maps and 10 books for a total of $38.00, and on Tuesday the store sold 20 maps and 15 books for a total of $60.00. At this store, how much less does a map sell for than a book?
plugging into the first eq
answer is $0.50
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