SOLUTION: Sam has 15 coins, all nickels and dimes, with a total value of $0.90. How many of each coin does he have? (Let d = the number of dimes and n = the number of nickels).
A. Write
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A. Write
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Question 876354: Sam has 15 coins, all nickels and dimes, with a total value of $0.90. How many of each coin does he have? (Let d = the number of dimes and n = the number of nickels).
A. Write a system of equations to model the problem.
B. Solve the system.
C. State your answer with the proper label or labels. Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! n + d = 15, n =
10d + 5n = 90 (amount of cents makes sense)
10d + 5(15-d) = 90
5d = 15
d = 3 and n = 12
3 Dimes and 12 nickels and
