15 and 16 answer

0.6598 15. (4 points) Solve the following system of linear equations using any method. Partial credit can only be given if work is shown. 4x - 7y =-27 -2x +3y = 11 16. (4 points) A manufacturer wishes to make two different bronze alloys in a metal foundry. The quantities of copper, tin, and zinc needed are indicated in matrix M. The costs for these materials (in dollars per pound) from three suppliers are summarized in matrix N. What is the total cost of materials for Alloy 2 from Supplier C? Copper Tin Zinc Supplier: AB C $0.75 $0.70 $0.73] Copper 600 lbs 300 lbs] Alloy 1 N = $6.50 $6.70 $6.55 Tin 4,800 lbs M = 6,000 lbs 1,400 lbs 700 lbs] Alloy 2 $0.40 $0.50 $0.601 Zinc