Question

Eva works as a salesperson at an electronics store and sells phones and phone accessories. Eva earns a $8 commission for every phone she sells and a $3.50 commission for every accessory she sells. How much money would Eva make in commission if she sells 19 phones and 30 accessories? How much money would Eva make in commission if she sells p phones and a accessories?

a. For 19 phones and 30 accessories: $233.50
b. For 19 phones and 30 accessories: $244
c. For p phones and a accessories: 8p + 3.5a
d. For p phones and a accessories: 11.5(p + a)

Answer 1

Eva would earn $257 in commission for selling 19 phones and 30 accessories. The general formula for calculating her commission for an arbitrary number of phones (p) and accessories (a) is 8p + 3.5a.

Step-by-step explanation:

To calculate the commission Eva earns for selling phones and accessories, we multiply the number of each item sold by the respective commission rate and then add the two amounts together. For 19 phones and 30 accessories, the calculation is as follows:

• Commission from phones: 19 phones × $8 = $152
• Commission from accessories: 30 accessories × $3.50 = $105
• Total commission: $152 + $105 = $257

The general formula for calculating commission for p phones and a accessories is to multiply the number of each by their respective commission rates and add the results:

• Commission from phones: 8p
• Commission from accessories: 3.5a
• Total commission: 8p + 3.5a