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21-09-2018
Mathematics

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Kevin and Randy muise have a jar containing 65 coins all of which are either quarters or nickels the total value of coins in the jar is $10.25 how many of each type of coin do they have

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21-09-2018

Q+N=65
.25Q+.05N=10.25

Q=65-N
.25(65-N)+.05N=10.25
16.25-.25N+.05N= 10.25
-.20N= -6
N= 6/.20= 30
Q= 65-30= 35

Answer is 35 quarters and 30 nickels

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