Problema Solution
You send 25 digital images to a printing service that charges $.60 for large format and $.25 for the smaller format. If you paid $10.10 for the prints how many of each did you order?
Answer provided by our tutors
let
l = the number of large formats
s = the number of smaller formats
you send 25 digital images to a printing service
l + s = 25
you paid $10.10
0.60l + 0.25s = 10.10
by solving the system of equations
l + s = 25
0.60l + 0.25s = 10.10
we find
l = 11 large formats
s = 14 smaller formats
11 images in large format and 14 images in smaller format.