SOLUTION: A scientist is working with two different concentrations of hydrochloric acid (HCl). Bottle C is 80% HCl, and Bottle D is 30% HCl. For their experiment they need 1 liter of 60% H

Question 1208408: A scientist is working with two different concentrations of hydrochloric acid (HCl). Bottle C is 80% HCl, and Bottle D is 30% HCl. For their experiment they need 1 liter of 60% HCl. The scientist needs to know the required number of liters of each solution to use.
Write a system of equations that could be used to solve this problem.
Algebraically solve your system of equations
How many liters of Bottle C do they need?

Found 2 solutions by josgarithmetic, timofer:
Answer by josgarithmetic(39621) (Show Source): You can put this solution on YOUR website!
Available 80% and 30%;
and want 1 liter of 60% solution;

If take c volume of the 80% then would be take 1-c of the 30%.

------------solve for c, number of liters (could choose to then convert to mililiters).
Answer by timofer(105) (Show Source): You can put this solution on YOUR website!
bottle c, 80% HCl
bottle d, 30% HCl
result to become mix to have 10 liter of 60% HCl
System of equations? This should be done in one if you see how.

The pure HCl, but factor 1 does not give anything more.

Also c and d together must be 1 liter.

Good system for you:

Work the rest from that.
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