This document describes a problem involving a farmer buying two types of fertilizer mixes to supply the necessary nutrients for his corn field. The farmer can buy Mix A containing 30 pounds of phosphoric acid and 10 pounds of nitrogen, or Mix B containing 40 pounds of phosphoric acid and 50 pounds of nitrogen. The problem asks the reader to write a system of equations representing the amounts of each mix needed to meet the field's requirements of 320 pounds of phosphoric acid and 290 pounds of nitrogen, and then graph the system to determine the solution.

1. Graphing Systems of Equations
Assessment

2. Write a system of equations for
the following problem and graph the
system to determine the solution.
Record your work in Educreations
and submit.

3. A farmer can buy two types of fertilizer. Mix A
contains 30 pounds of phosphoric acid and 10
pounds of nitrogen. Mix B contains 40 pounds
of phosphoric acid and 50 pounds of nitrogen.
The soil test indicates that his corn field needs
320 pounds of phosphoric acid and 290 pounds
of nitrogen. How many barrels of each type of
fertilizer should the farmer buy to supply the
necessary nutrients for the corn field?