Systems of linear equations and problem solving?

Mathematics
Tutor: None Selected Time limit: 1 Day

Find how many quarts of 4% butterfat milk and 1% butterfat milk should be mixed to yield 60 quarts of 2% butter fat milk.

May 29th, 2015

4x + (60 -x)1 = 60*2

== > 3x = 60

== > x = 20 quarts

So, 20 quarts of 4% fat milk plus 40 quarts of 1% butterfat  milk

http://www.softmath.com/algebra-word-problems/show.php?id=7045 

May 29th, 2015

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