SOLUTION: John has a total of 20 coins in quarters and nickels, that are worth $3.60, how many of each coin does he have?

Question 940226: John has a total of 20 coins in quarters and nickels, that are worth $3.60, how many of each coin does he have?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
John has a total of 20 coins in quarters and nickels, that are worth $3.60, how many of each coin does he have?
----
# of coins Eq:: n + q = 20
----
Value of coins:: 5n + 25q = 360
---------
n + q = 20
n + 5q = 72
------
Subtract and solve for "q"::
4q = 52
q = 13 (# of quarters)
----
n = 20-13 = 7 (# of nickels)
------------
Cheers,
Stan H.
------------
RELATED QUESTIONS
larry has 40 coins worth a total of 8.80. some are nickels and the rest are quarters. How (answered by Alan3354)

Mike has 19 coins in his pocket worth a total of $2.35. He only has nickels, dimes and... (answered by ikleyn)

Mike has 19 coins in his pocket worth a total of $2.35. He only has nickels, dimes and... (answered by josgarithmetic)

Mike has 19 coins in his pocket worth a total of $2.35. He only has nickels, dimes and... (answered by Boreal,MathTherapy)

Sam has 26 coins in nickels and quarters worth $3.10. How many of each coin does he have. (answered by macston)

sam has a collectoin of 20 coins. The coins are all nickels and dimes. The coins are... (answered by mtmorro)

SHerry has 23 coins in his ashtray. There are nickels, dimes and quarters. If he has... (answered by ikleyn)

Ron has 14 coins with a total value of $1.70. The coins are nickels and quarters. How... (answered by oberobic)