SOLUTION: In the lab, Lashonda has two solutions that contain alcohol and is mixing them with each other. She uses
300
milliliters less of Solution A than Solution B. Solution A is
19%
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300
milliliters less of Solution A than Solution B. Solution A is
19%
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Question 1122001: In the lab, Lashonda has two solutions that contain alcohol and is mixing them with each other. She uses
300
milliliters less of Solution A than Solution B. Solution A is
19%
alcohol and Solution B is
12%
alcohol. How many milliliters of Solution A does she use, if the resulting mixture has
377
milliliters of pure alcohol? Found 2 solutions by ikleyn, josmiceli:Answer by ikleyn(52776) (Show Source):
Let x = "How many milliliters of Solution A does she use", in mL.
Then the amount of the solution B is (x+300) mL.
Then your equation is
"pure alcohol" + "pure alcohol" = "total pure alcohol"
0.19x + 0.12*(x+300) = 377.
Simplify and solve for x:
0.19x + 0.12x + 36 = 377
0.31x = 377 - 36 = 341 ====> x = = 1100 mL.
Answer. She uses 1100 mL of solution A.
You will find there ALL TYPICAL mixture problems with different methods of solutions,
explained at different levels of detalization, from very detailed to very short.
Read them and become an expert in solution mixture word problems.
You can put this solution on YOUR website! Let = ml of solution B used = ml of solution A used
覧覧覧覧覧覧 = alcohol in solution B = alcohol in solution A and B
覧覧覧覧覧覧
And
She uses 1100 ml of solution A
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Check:
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