SOLUTION: you have 13 nickels and dimes in your pocket. if the amount of money is a dollar, how many nickels do you have? how would you solve it?

Question 713433: you have 13 nickels and dimes in your pocket. if the amount of money is a dollar, how many nickels do you have? how would you solve it?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
This solution will be given only part-way through.
d for how many dimes, n for how many nickels. One dollar is 100 cents.

Account for total coins, d+n=13.
Account for cents, 10d+5n=100. Divide this cents equation by 5 to get 2d+n=20.

System of Equations to Solve:
2d+n=20
d+n=13
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