Model Contexts with Two Variable Expressions

Question

Gavin works as a salesperson at an electronics store and sells phones and phone accessories. Gavin earns a $13 commission for every phone he sells and a $3 commission for every accessory he sells. How much money would Gavin make in commission if he sells 6 phones and 22 accessories? How much money would Gavin make in commission if he sells pp phones and aa accessories?

6 phones and 22 accessories

p phones and a accessories

Answer 1

Hello, Goofy,

Total commission (TC) = (Number of Phones)*$13 + (Number of Accessories)*$22 = $144

Just use pp and aa in place of the actual numbers:

TC = $13pp + $22aa

Bob