SOLUTION: In a jar of coins, there are 30 fewer quarters than dimes. The value of the dimes equals the value of the quarters. How many dimes in the jar?
( chart, diagram, shape… )
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Question 1046206: In a jar of coins, there are 30 fewer quarters than dimes. The value of the dimes equals the value of the quarters. How many dimes in the jar?
( chart, diagram, shape… )
Answer by JoelSchwartz(130) (Show Source): You can put this solution on YOUR website!
x=the number of dimes
y=the number of quarters
y=x-30
.1x=.25y
.1x=.25(x-30)
.1x=.25x-7.5
7.5=.15x
x=50
y=20
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