SOLUTION: How many ounces of pure chocolate must be added to 270 oz of chocolate topping that is 50% chocolate to make a topping that is 75% chocolate?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: How many ounces of pure chocolate must be added to 270 oz of chocolate topping that is 50% chocolate to make a topping that is 75% chocolate?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 358921: How many ounces of pure chocolate must be added to 270 oz of chocolate topping that is 50% chocolate to make a topping that is 75% chocolate?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How many ounces of pure chocolate must be added to 270 oz of chocolate topping that is 50% chocolate to make a topping that is 75% chocolate?
------------------------
Equation:
choco + choco = choco
-----
0.50*270 + 1.00x = 0.75(270+x)
------
Multiply thru by 100 to get:
50*250 + 100x = 75*270 + 75x
25x = 25*270
x = 270 oz (amt. of pure choco needed in the mixture)
======================
Cheers,
Stan H.