Posted by deel on Sunday, November 11, 2012 at 10:31pm.
in order to grow a certain crop, it is recommended that each square foot of ground be treated with 10 units of phosphorous, 9 units of potassium, and 19 units of nitrogen, suppose that there are three brands of fertilizer on the market  say brand X, brand Y, and brand Z. One pound of brand X contains 1 unit of phosphorous, 3 units of potassium, and 4 units of nitrogen. One pound of brand Z contains only 1 unit of phosphorous and 1 unit of nitrogen.
a. Determine whether or not possible to meet exactly the recommendation by applying some combination of three brands of fertilizer. Give your reasoning.
b. if it is possible to meet the recommendation, what is the combination of the three brands that satisfies the recommendation?

linear algebra  Lawrence, Thursday, September 8, 2016 at 4:45pm
i domt know
Answer This Question
Related Questions
 Math  What is the surface area in square units? top= 10 square units bottom= 10...
 Math  What is the surface area in square units? top= 10 square units bottom= 10...
 Calculus  the area of the first quadrant region bounded by the yaxis, the line...
 math  Note: Figure not drawn to scale If U = 4 units, V = 5 units, W = 7 units...
 CHEMISTRY  Consider a system of three molecules A, B, and C. Suppose that three...
 Chem  Consider a system of three molecules A, B, and C. Suppose that three ...
 chem helpp!  Consider a system of three molecules A, B, and C. Suppose that ...
 Math  7.) Old McDonald wants to build a fence around his farm. If the area of ...
 Algebra 2 Need Help  1. function g(x)=x^23x+7 . Find the area under the curve...
 Chemistry  Consider a system of three molecules A, B, and C. Suppose that three...
More Related Questions