SOLUTION: How many gallons of rocket fuel containing 80% liquid oxygen must be mixed with 250 gallons containing 40% liquid oxygen to produce a mixture containing 70% oxygen?
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: How many gallons of rocket fuel containing 80% liquid oxygen must be mixed with 250 gallons containing 40% liquid oxygen to produce a mixture containing 70% oxygen?
Log On
Question 667423: How many gallons of rocket fuel containing 80% liquid oxygen must be mixed with 250 gallons containing 40% liquid oxygen to produce a mixture containing 70% oxygen? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! How many gallons of rocket fuel containing 80% liquid oxygen must be mixed with 250 gallons containing 40% liquid oxygen to produce a mixture containing 70% oxygen?
---------------
Equation:
ox + ox = ox
-----
0.80x + 0.40*250 = 0.70(x+250)
----
80x + 40*250 = 70x + 70*250
10x = 30*250
x = (1/3)(250)
x = 83 1/3 (amt of 80% liq ox needed)
==================
Cheers
Stan H.
(