A photographer sells two photo packages as shown.

Package 1 ---- cost is 81
6 1x1 ID photos
3 wallet size photos
Package 2 ---- cost is120
10 1x1 ID photos
4 wallet size photos
How much does a 1x1 ID photo cost? A wallet size photo?

2 answers

Given x 1x1 and y wallets,

6x+3y = 81
10x+4y = 120

1x1 costs 6
wallet costs 15
Yes! I got the same answer. Thanks.