Markypoo Markypoo

30-10-2017
Mathematics

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A very old vending machine accepts only nickels (n) and dimes (d). Candy costs up to $0.50, but sometimes the machine will dispense candy without any coins being inserted into the machine. Which inequality shows all of the ways to obtain a candy bar from the machine?

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Аноним Аноним

30-10-2017

Let n be the number of nickels.
Let d be the number of dimes.
Our inequality is
10d + 5n ≤ 50

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