Set up a matrix representing the information given in Exercise 91. A given shipment contains 500 g of alloy A, 800 g of alloy B, and 700 g of alloy C. Set up a matrix for this information. By multiplying these matrices, obtain a matrix that gives the total weight of lead, zinc, and copper in the shipment.

Data from Exercises 91

By mass, three alloys have the following percentages of lead, zinc, and copper.

How many grams of each of alloys A, B, and C must be mixed to get 100 g of an alloy that is 44% lead, 38% zinc, and 18% copper?

Transcribed Image Text:

Alloy A Alloy B Alloy C Lead 60% 40% 30% Zinc 30% 30% 70% Copper 10% 30%