A few days ago
I Need help with my college algebra math word problem!?
A chemist has a 35% saline solution and a 60% saline solution available. How many milliliters of each of these available solutions should she mix to obtain 700 mL of a 40% solution?
Top 1 Answers
A few days ago
Favorite Answer
x=560
y=140
First, get your equation: basically its .35 of x plus .6 of y equals .4 of 700, or 280. that gets us to:
.35x + .6y=280
x + y= 700, which we know from the text.
that we can alter to get:
x= 700-y
.35(700-y) + .6y = 280
245 + .25y = 280
.25y = 35
y=140
reverting to our original equation:
x+ 140 = 700
x= 560
and you can check that.=, and get the answer.
I’m surprised that is college, i’m a sixth grader and i can do it.
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