Homework Help: math

Posted by Kt on Monday, January 1, 2007 at 11:45am.

Jo has 37 coins (all nickels, dimes and quarters) worth $5.50. She has 4 more quarters than nickels. How many of each type of coins does she have?

d=#dimes
n=#nickels
q=#quarters.
==============
d+n+q=37
n+4=q
0.1d + 0.05n + 0.25q = 5.50
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three equations.three unknowns.
Solve for d,n,q.
Post your work if you get stuck and need further assistance.

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