Posted by Ashley on Thursday, January 28, 2010 at 2:33pm.
Translate the problem into a pair of linear equations in two variables. Solve the equations using either elimination or substitution. State your answer for both variables.
An orchard operator must dilute 11 quarts of a 60% insecticide solution by adding water. Hpw many quarts of water should be added to get a mixture that is 2% insecticide?

College Algebra  bobpursley, Thursday, January 28, 2010 at 3:02pm
The amount of insecticide remains the same, but the diluted volume changes.
Insecticide orig= Insecticide final
11*.60=(11+X).02
solve for x, the quarts of water that have to be added.