Posted by Emily on Sunday, August 24, 2008 at 6:27pm.
Find the solution if possible. If there is not enough information to solve the problem or if it has no solution, say so. If extra information is given, identify it.
14. A collection of 30 coins worth $5.50 consists of nickels, dimes, and quarters. There are twice as many dimes as nickels. How many quarters are there?

I'm pretty sure there's enough information to solve this problem, I just can't figure it out. I either get fractions or negative numbers as my answer. Any help is greatly appreciated!! :)

Algebra II  bobpursley, Sunday, August 24, 2008 at 6:40pm
Q+D+N=30
.25Q+.10D +.05N=5.50
D=2N
Yes, three equations, three unknowns, enought information.

Algebra II  cyiesha, Wednesday, August 10, 2011 at 8:35pm
A collection of 30 coins worth $5.50 consists of nickels, dimes, and quarters. There are twice as many dimes as nickels. How many quarters are there?
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