Peter R. answered 08/27/22
Adjunct Lecturer - Math Department - Borough of Manhattan C.C.
700 eggs; 1200 cups of cream
Vanilla uses 2 eggs + 3 cups per quart of ice cream.
Mocha uses 1 egg + 3 cups
For total eggs: 2V + 1M = 700
For total cream 3V + 3M = 1200
Solve system of equations:
Mult eggs by 3: 6V + 3M = 2100
3V + 3M = 1200
Subtract: 3V + 0 = 900 → V = 300 qts
2(300) + 1M = 700 → M = 100 qts
Check: Total eggs: 2(300) + 1(100) = 700 eggs
Total cream: 3(300) + 3(100) = 1200 cups