Patrick B. answered 02/17/20
Math and computer tutor/teacher
0.4 *800 + 0.12 B = 0.2(B+800)
320 + 0.12B = 0.2B + 160
160 = 0.08B
16000= 8B
B = 2000
Sarah C.
asked 01/14/20In the lab, Melissa has two solutions that contain alcohol and is mixing them with each other. Solution A is 40% alcohol and solution B is 12% alcohol. She uses 800 milliliters of solution A. How many milliliters of solution B does she use, if the resulting mixture is a 20% alcohol solution?
Patrick B. answered 02/17/20
Math and computer tutor/teacher
0.4 *800 + 0.12 B = 0.2(B+800)
320 + 0.12B = 0.2B + 160
160 = 0.08B
16000= 8B
B = 2000
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