Question

One photo shop charges $0.36 per print. Another photo shop charges $2.52 plus $0.08 per print. Juan finds that the cost of printing his photos is the same at either shop.how many photos does Juan have to print?

Answer 1

Juan have to print 9 photos.

Explanation

Suppose, Juan have to print $x$ number of photos.

First photo shop charges $0.36 per print.  So, the total cost to print $x$ number of photos in this shop $=0.36x$ dollar.

Second photo shop charges $2.52 plus $0.08 per print. So, the total cost for printing $x$ number of photos $= (2.52+0.08x) dollar$

As, the cost of printing is the same at both shops, so.....

$0.36x=2.52+0.08x\\ \\ 0.36x-0.08x= 2.52\\ \\ 0.28x=2.52\\ \\ x=\frac{2.52}{0.28}=9$

So, Juan have to print 9 photos.