SOLUTION: In the lab, Justin has two solutions that contain alcohol and is mixing them with each other. He uses 3 times as much Solution A as Solution B. Solution A is 17% alcohol and Soluti
Algebra.Com
Question 770456: In the lab, Justin has two solutions that contain alcohol and is mixing them with each other. He uses 3 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 he use, if the resulting mixture has 195 milliliters of pure alcohol?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = ml of solution A needed
Let = ml of solution B needed
= ml of alcohol in solution A
= ml of alcohol in solution B
---------------------------------
(1)
(2)
-----------------------
(2)
Substitute (1) into (2)
(2)
(2)
(2)
(2)
He should use 300 ml of solution B
---------
check:
(1)
(1)
and
(2)
(2)
(2)
(2)
OK
RELATED QUESTIONS
In the lab, Justin has two solutions that contain alcohol and is mixing them with each... (answered by josgarithmetic,ikleyn)
In the lab, Brian has two solutions that contain alcohol and is mixing them with each... (answered by josgarithmetic)
In the lab, Kevin has two solutions that contain alcohol and is mixing them with each... (answered by josgarithmetic,ikleyn)
In the lab, Carlos has two solutions that contain alcohol and is mixing them with each... (answered by richwmiller)
In the lab Justin has two solutions that contain alcohol and is mixing them with each... (answered by ikleyn)
In the lab, Brian has two solutions that contain alcohol and is mixing them with each... (answered by josmiceli)
In the lab, Dale has two solutions that contain alcohol and is mixing them with each... (answered by ikleyn)
In the lab, Lashonda has two solutions that contain alcohol and is mixing them with each... (answered by stanbon,ankor@dixie-net.com)
In the lab, Kaitlin has two solutions that contain alcohol and is mixing them with each... (answered by ikleyn)