SOLUTION: Kevin and Randy muise have a jar containing 49 coins, all of which are either quarters or nickels. The total value of coins in the jar is $6.05. How many of each type od coin do t

Question 993078: Kevin and Randy muise have a jar containing 49 coins, all of which are either quarters or nickels. The total value of coins in the jar is $6.05. How many of each type od coin do they have?
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
q = number of quarters
n = number of nickels

25q + 5n = 605
q + n = 49

Multiply the second equation by 5.

25q + 5n = 605
-(5q + 5n = 245)
----------------------
20q = 360
q = 18

They have 18 quarters and 31 nickels.
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