Answer:
Equation : y = 4.50D + 40
Number of pairs = 16
Step-by-step explanation:
It is given that:
Per day wage of Roger = $40
Commission on per pair of shoes = $4.50
Daily goal = $112
Number of pairs of shoes = D
Total earning = y
y = 4.50D + 40
112 = 4.50D + 40
4.50D = 112 - 40
4.50D = 72
Dividing both sides by 4.50
[tex]\frac{4.50D}{4.50}=\frac{72}{4.50}\\D = 16 \\[/tex]
Therefore,
Equation : y = 4.50D + 40
Number of pairs = 16
