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Mathematics 19 Online
OpenStudy (anonymous):

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?

OpenStudy (anonymous):

How many nickels in 50 cents? How many dimes in 50 cents?

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