Question 1173975
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in the lab, Amanda has two solutions that contain alcohol and is mixing them with each other. She uses 4 times as much Solution A 
as Solution B. Solution A is 17% alcohol and Solution B 14% is alcohol. How many milliliters of Solution B does she use, 
if the resulting mixture has 574 milliliters of pure alcohol?
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<pre>
Let  x  be milliliters of solution B.

Then  milliliters of solution A is 4x.


With the solution B, 0.14x milliliters of the pure alcohol go to the final mixture.

With the solution A, 0.17*(4x) milliliters of the pure alcohol go to the final mixture.


The total pure alcohol equation for the final mixture is


    0.14x + 0.17*(4x) = 574   milliliters of the pure alcohol.


From this equation


    x = {{{574/(0.14 +4*0.17)}}} = 700.


<U>ANSWER</U>.  700 milliliters of the solution A.
</pre>

Solved.