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joe had four times as many dimes as pennies in her pocket. she spent two dimes and got two pennies in change. Now she has three times as many dimes as pennies. jo started with how many dimes?
14 years ago

Answers

bobpursley
d=4P
(d-2)=3(P+2)

that should do it, two equations, two unknowns. Put them in standard form..

d-4P=0
d-3P=8

solve for d, P
14 years ago

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