SOLUTION: a cookie recipe uses twice as much flour as sugar. If the total amount of these ingredients is 2 1/4 cups,how much sugar and how much flour are in these cookies?

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Question 623279: a cookie recipe uses twice as much flour as sugar. If the total amount of these ingredients is 2 1/4 cups,how much sugar and how much flour are in these cookies?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
2s=f;
f+s=2.25
2s+s=2.25
3s=2.25
s=2.25/3
s=.75 or 3/4 cup
f=1.5 cups or 1 1/2 cup