SOLUTION: Gloria has some change in her wallet that is made up of nickels and dimes. There are 4 more nickels than dimes. The value of the soins is $2.60. Using a system of equations, find t
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-> SOLUTION: Gloria has some change in her wallet that is made up of nickels and dimes. There are 4 more nickels than dimes. The value of the soins is $2.60. Using a system of equations, find t
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Question 161116: Gloria has some change in her wallet that is made up of nickels and dimes. There are 4 more nickels than dimes. The value of the soins is $2.60. Using a system of equations, find the number of nickels Gloria has in her walllet. Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! .10D+.05(D+4)=2.60
.10D+.05D+.20=2.60
.15D=2.60-20
.15D=2.40
D=2.40/.15
D=16 DIMES
16+4=20 NICKLES.
PROOF:
.10*16+.05*20=2.60
1.60+1.00=2.60
2.60=2.60
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