SOLUTION: a gardener has 80 pounds of 8 % nitrogen fertilizer and an unlimited supply of 20 % nitrogen fertilizer. he wishes to mix the fertilizer so he gets a mixture that is 12 % nitrogen.

Algebra.Com
Question 995949: a gardener has 80 pounds of 8 % nitrogen fertilizer and an unlimited supply of 20 % nitrogen fertilizer. he wishes to mix the fertilizer so he gets a mixture that is 12 % nitrogen. how many pounds of 20 % fertilizer should he mix in?
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
LESSON: Mixture: one material quantity unknown
RELATED QUESTIONS

An agronomist has 4 % nitrogen fertilizer and 20 % nitrogen fertilizer. He needs to get... (answered by vleith)
A farmer needs 120 gallons of an 18% nitrogen fertilizer. But the farmer only has 10%... (answered by stanbon)
HOW MUCH FERTILIZER CONTAINING 8% NITROGEN SHOULD BE MIX WITH A FERTILIZER CONTAINING 12% (answered by ewatrrr)
Tim needs a 26% nitrogen mixed bag of fertilizer. He had 75g of an 18% nitrogen... (answered by macston)
Scott's Winterizer Lawn Fertilizer is 22% nitrogen. Schultzs Lime with Lawn Fertilizer is (answered by mananth)
Scott's Winterizer Lawn Fertilizer is 22% nitrogen. Schultz's Lime with Lawn Fertilizer... (answered by josmiceli)
a fertilizer manufacturer has two fertilizers, one which contains 24% nitrogen, and the... (answered by DrBeeee)
he has liquid fertilizer solutions that are 10% and 50% nitrogen. how many gallons of... (answered by stanbon)
A landscaper wants to use a fertilizer blend that is 8% nitrogen. He will mix a 10%... (answered by ankor@dixie-net.com)