Problema Solution
A vat contains 70 gallons of a fruit juice mixture that is 40% orange juice. How many gallons of the mixture should be drained and replaced with pure orange juice to make the mixture 80% orange juice?
Answer provided by our tutors
Let 'x' represent the gallons of the mixture that should be drained and replaced with 100% orange juice.
0.40*(70 - x) + 1.00*x = 0.80*70
........
click here to see the equation solved for x
........
x = 46.67 gal
46.67 gallons of the mixture should be drained and replaced with pure orange juice.