Answer:
- 16x +28y = 1876
- x + y = 82
- 16 oz: 35; 28 oz: 47
Step-by-step explanation:
Each constraint will have its own equation.
16x +28y = 1876 . . . . . . total ounces donated
x + y = 82 . . . . . . . . . total jars donated
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The solution can be found by substitution:
x = 82 -y
16(82 -y) +28y = 1876
12y = 564 . . . . . . . . . . . . . subtract 1312, simplify
y = 47 . . . . . . . . . divide by 12
x = 82 -47 = 35 . . . . find x
35 16-oz jars and 47 28-oz jars were donated.
