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OpenStudy (soupp):
I have x+y=49 .10x+.25y=7.45
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jigglypuff314 (jigglypuff314):
you can use the substitution method to solve this :) x+y=49 -> y = -x + 49 plug into 0.1x + 0.25y = 7.45 to get 0.10x + 0.25(-x+49) = 7.45 then distribute, simplify, and solve for x :)
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