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OpenStudy (anonymous):
how many liters each of 15% acid and 33% acid should be mixed to get 120 liters of 21% acid? I get x=80 and y is equal to 40 is this correct?
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OpenStudy (anonymous):
0.15*x+.33*y = .21(x+y) x amountof 15% + y amount of 33% = (x+y) abount of 21%
OpenStudy (anonymous):
x+y=120
OpenStudy (anonymous):
and is the second one supposed to look like 0.15x+0.33y=0.21?
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