SOLUTION: how to solve this problem: A class contributed $19.00 in quarters and dimes to the Red Cross. In all their 100 coins. How many were there of each card?

Question 1078087: how to solve this problem:
A class contributed $19.00 in quarters and dimes to the Red Cross. In all their 100 coins. How many were there of each card?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of dimes
Let = number of quarters
---------------------------------
(1)
(2) ( in cents )
-----------------------------------
(2)
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
-------------------------

and
(1)
(1)
(1)
-----------------------
There are 40 dimes and 60 quarters
-----------------------------------
check:
(2)
(2)
(2)
(2)
OK
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