SOLUTION: Lucy has 22 coins consisting of nickels and quarters amounting to $4.50. How many of each kind does she have?

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Question 1131040: Lucy has 22 coins consisting of nickels and quarters amounting to $4.50. How many of each kind does she have?
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
x, how many quarters
22-x, how many nickels

25x%2B5%2822-x%29=450
-
25x%2B5%2A22-5x=450
20x=450-5%2A22
4x=90-22
highlight_green%28x=17%29

17 quarters
5 nickels