SOLUTION: Mr. Carmona has a total of $1.05 in nickels and dimes. If he had three more nickels, then he'd have four times as many nickels as dimes. Find the number of nickels and dimes.

Question 737513:
Mr. Carmona has a total of $1.05 in nickels and dimes. If he had three more nickels, then he'd have four times as many nickels as dimes. Find the number of nickels and dimes.
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
.05N+.10D=1.05
N+3=4D
N=4D-3
.05(4D-3)+.10D=1.05
.20D-.15+.10D=1.05
.30D=1.05+15
.30D=1.20
D=1.20/.30
D=4 NUMBER OF DIMES.
N+3=4*4
N+3=16
N=16-3
N=13 NUMBER OF NICKLES.
PROOF:
.05*13+.10*4=1.05
.65+.40=1.05
1.05=1.05
RELATED QUESTIONS
Mr. Carmona has a total of $1.05 in nickels and dimes. If he had three more nickels,... (answered by checkley79)

Mr. Carmona has a total of $1.60 in nickels and dimes. He has twice as many nickels as... (answered by mananth)

1) Ethan has quarter and nickels. If Ethan had six more quarters than and two times the... (answered by stanbon)

Mr. Carmona has a total of 22 nickels and dimes. The number of nickels is two more... (answered by checkley79)

Mr. Carmona has a total of 22 nickels and dimes. The number of nickels is two more than... (answered by checkley79)

Alex has four times as many quarters as nickels and five more dimes than nickels in his... (answered by addingup,ikleyn)

If you had $2.30 in change but he has two more quarters than dimes but three times as... (answered by hovuquocan1997)

1. Jordan has a total of one hundred thirty nickels, dimes and quarters. He has three and (answered by josmiceli)