you have 40 coins, quarters dimes and nickles and they equal $6.00. you have two more quarters then nickles. how many of each do you have

4 answers

let the number of nickels be x (nickels, not nickles)
then the number of quarters is x+2
then the number of dimes is 40 - x - (x+2)
or 38-2x

5x + 25(x+2) + 10(38-2x) = 600

solve
Let q = number of quarters
let d = number of dimes
let n = number of nickels.
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q + d + n = 40
0.25q + 0.10d + 0.05n = 6.00
q = n+2
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Solve for the three unknowns. Check my thinking.
Greg has 40 coins. Half of them are quarters and the rest are nickels. What is the value of the coins?
greg has 40 cents in his hand half of them are quarters and the rest are nickels