Question

A store normally sells windows at $100 each. This week the store is offering one free window for each purchase of four. Dave needs seven windows and Doug needs eight windows. How much will they save if they purchase the windows together rather than separately?

Answer 1

@dan815

Answer 2

How many windows in total?
Add the number Dave and Doug have

Answer 3

15 total windows

Answer 4

Basically for every five windows, it is 400 dollars.

Answer 5

And every windows is 100

Answer 6

so basically 1200 dollars

Answer 7

So Dave would spend 600 dollars on his windows while the other guy would spend 700

Answer 8

But together they spend 1200

Answer 9

Add 600 and 700 and then subtract 1200 from that amount.

Answer 10

600 + 700 = 1300
1300 - 1200 = 100
@SrignanP

Answer 11

@dan815