You want to fill nine 1-pound tins with a mixture made of M&M’s and peanuts. The peanuts cost $5.85/lb and the M&M’s cost $2.45/lb. If you have $32.25 to spend (not including tax), how many pounds of each should you purchase to make the mixture?To solve this application using a matrix equation (I am helping you set it up):*What do you want to find? _____________________________
*Unknowns: Let x = pounds of peanuts , y = pounds of M & M's
*Write the system of equations: Total lbs of mixture: x + y = _?_
Total cost of mixture: 5.85x + 2.45

Question

You want to fill nine 1-pound tins with a mixture made of M&M’s and peanuts.  The peanuts cost $5.85/lb and the M&M’s cost $2.45/lb.  If you have $32.25 to spend (not including tax), how many pounds of each should you purchase to make the mixture?To solve this application using a matrix equation (I am helping you set it up):*What do you want to find? _____________________________
*Unknowns:  Let x = pounds of peanuts , y = pounds of M & M's
*Write the system of equations:  Total lbs of mixture:  x + y = _?_
                                                 Total cost of mixture: 5.85x + 2.45

mertsj · Answer

Well your teacher practically solved it for you.
x+y=9
5.85x+2.45y=32.25

mertsj · Answer

Solve that system by whatever method you choose.