Question 480037
There were 204 coins on the table. They are all nickels and quaters. The total value is 30.60. How many coins are quaters and how may nickels?

------
Equations:
Quantity Eq::: n + q = 204 coins
Value Eq::::: 5n +25q =3060 cents
--------------------------------------
Multiply thru the Quantity Eq. by 5:
5n + 5q = 5*204
5n +25q = 3060
---
Subtract and solve for "q":
20q = 2040
q = 102 (# or quarters)
----
Solve for "n":
n + q = 204
n +102 = 204
n = 102 (# of nickels)
============================
Cheers,
Stan H.