Question 703526: a company wants to increase the 10 percent content of its product by adding pure peroxide (100 % peroxide). If x liters of pure peroxide is added to 500 liters of its 10% solution, the concentration C, of the new mixture is given by C = x+0.4/x-0.1. How man liters of pure peroxide should be added to produce a new product that is 28% peroxide?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! a company wants to increase the 10 percent content of its product by adding pure peroxide (100 % peroxide). If x liters of pure peroxide is added to 500 liters of its 10% solution, the concentration C, of the new mixture is given by C = x+0.4/x-0.1. How man liters of pure peroxide should be added to produce a new product that is 28% peroxide?
----------------------------------------
Equation:
per + per = per
0.10*500 + 1.00x = 0.28(500+x)
----
Multiply thru by 100 to get:
10*500 + 100x = 28*500 + 28x
72x = 18*500
x = (1/4)500
x = 125 liters (amt. to add)
===============================
Cheers,
Stan H.
==============
|
|
|
