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OpenStudy (anonymous):
a person has 17 coins, all and dimes,$1.25.how many nickles are there?
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hero (hero):
let n = nickels d = dimes The total number of coins is represented by n + d = 17 The total amount of money the person has is represented by .05n + .10d = 1.25 Therefore solve this system: n + d = 17 .05n + .10d = 1.25
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