Posted by RNRH on Monday, February 14, 2011 at 2:31pm.
How many gallons of milk containing 5% butter fat must be mixed with 100 gallons of 1% milk to obtain 2% milk?

math  Kate, Monday, February 14, 2011 at 2:53pm
Let x = number of gallons of %5 milk
0.05x + 0.01(100) = 0.02(x+100)
0.05x + 1 = 0.02(x+100)
0.05x + 1 = 0.02x + 2
0.03x = 1
x = 33 and 1/3
Write back if you need more explanation