SOLUTION: A coin purse contains an equal number of nickels, dimes and quarters. The total amount of money in the purse is 720 cents. How many quarters are in the coin purse?

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Question 126937: A coin purse contains an equal number of nickels, dimes and quarters. The total amount of money in the purse is 720 cents. How many quarters are in the coin purse?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
"an equal number of nickels, dimes and quarters", let x="number of quarters" (it also equals nickels or dimes)

the number of coins multiplied by the value of a coin, gives the total value

25x+10x+5x=720 __ 40x=720