SOLUTION: One website recommends a 6% chlorine bleach-water solution to remove mildew. A chemical lab has 3% and 15% solutions in stock. How many gallons of each should be mixed to obtain 10
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: One website recommends a 6% chlorine bleach-water solution to remove mildew. A chemical lab has 3% and 15% solutions in stock. How many gallons of each should be mixed to obtain 10
Log On
Question 792076: One website recommends a 6% chlorine bleach-water solution to remove mildew. A chemical lab has 3% and 15% solutions in stock. How many gallons of each should be mixed to obtain 100 gallons of mildew spray? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! One website recommends a 6% chlorine bleach-water solution to remove mildew. A chemical lab has 3% and 15% solutions in stock. How many gallons of each should be mixed to obtain 100 gallons of mildew spray?
----------
Equation:
chlorine + chlorine = chlorine
---------
0.03x + 0.15(100-x) = 0.06*100
---------
3x + 15*100 - 15x = 6*100
-12x = -9*100
x = (3/4)100
x = 75 gallons (amt of 3% solution needed)
100-x = 25 gallons (amt of 15% solution needed)
================
Cheers,
Stan H.
================
(