SOLUTION: write a system of linear equations and solve. How many pounds of bird feed at $1.68 and $.83 per pound must be purchased to have 100 pouns of bird feed at a value of $1.34 per poun

Algebra ->  Linear-equations -> SOLUTION: write a system of linear equations and solve. How many pounds of bird feed at $1.68 and $.83 per pound must be purchased to have 100 pouns of bird feed at a value of $1.34 per poun      Log On


   

Question 32312: write a system of linear equations and solve. How many pounds of bird feed at $1.68 and $.83 per pound must be purchased to have 100 pouns of bird feed at a value of $1.34 per pound?
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
168x+83(100-x)=13400 or 168x+8300-83x=13400 or 85x=5100 or x=5100/85 or x=60
proof 168(60)+83(40)=13400 or 10080+3320=13400 or 13400=13400