SOLUTION: Coco has a jar containing pennies and nickels. There is $9.20 worth of coins in the jar. If she could switch the number of pennies with the number of nickels, there would be $26.80

Question 1060399: Coco has a jar containing pennies and nickels. There is $9.20 worth of coins in the jar. If she could switch the number of pennies with the number of nickels, there would be $26.80 worth of coins in the jar. How many pennies and nickels are in the jar?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the number of pennies in the 1st jar
Let = the number of nickels in the 1st jar
------------------------------------
(1) ( in cents )
------------------------------------
And, if the numbers of pennies and nickels are switched,
(2)
-----------------------------
(1)
(2)
Multiply both sides of (1) by
and subtract (2) from (1)
(1)
(2)
--------------------------

and
(1)
(1)
(1)
(1)
--------------------------
There are 520 pennies and 80 nickels in the jar
--------------------------
check:
(2)
(2)
(2)
(2)
OK

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