SOLUTION: marty has 30 quarters, dimes and nickels. the total value marty has in coins is $4.50. she has three times as many nickels as dimes. how many of each coin does marty have?

Question 358951: marty has 30 quarters, dimes and nickels. the total value marty has in coins is $4.50. she has three times as many nickels as dimes. how many of each coin does marty have?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
2.
3.
Substituting eq. 3 into eq. 1,

4.
Substituting eq. 3 into eq. 2,

5.
Subtract eq. 4 from eq. 5,

Then from eq. 5,

Then from eq. 3,

.
.
.
12 nickels, 4 dimes, and 14 quarters.
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