How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid to obtain a mixture containing a
40% solution of acid?
2 answers:
Answer:
x=40
Step-by-step explanation:
0.50x + 20(0.20) = 0.40(x + 20)
0.5x+4=0.4x+8
0.1x+4=8
0.1x=4
x=40
Answer:
40
Step-by-step explanation:
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