math work problem

Question

Annabelle works as a salesperson at an electronics store and sells phones and phone accessories. Annabelle earns a $14 commission for every phone she sells and a $3 commission for every accessory she sells. How much money would Annabelle make in commission if she sells 7 phones and 12 accessories? How much money would Annabelle make in commission if she sells p phones and a accessories?

Answer 1

If she sells 7 phones and 12 accessories:

14*7=$98 for the phones

3*12=$36 for the accessories

Total: $134 in commission

Basically, it is the same as above but just in equation form.

14p + 3a =Total Commission

14p= 14*p= $14* phones sold

3a= 3*a= 3* accessories sold

Answer 2

If Annabelle sells 7 phones at $14 commission for each, that will give her 7 x 14 = $91. For the 12 accessories, she gets 12 x $3 = $36. Her total earnings would be 91 + 36 = $127

Writing a single equation we would have

(7 x 12) + (3 x 12) = $127.

Generalizing we have (p x 12) + (a x 3) = earnings

or 12p + 3a = earnings.