Question

Connie can file 100 papers an hour, while Eric can file 80 papers an hour. Working together, how long will it take them to file 900 papers

Answer 1

5 hours

Explanation:

100t + 80t = 900

First, you can add 100t to 80t because they are both like terms.

100t + 80t = 900

180t = 900

Now you multiply,

when t = 2,

180*2 = 360

when t = 4,

180*4 = 720

When t = 5,

180*5 = 900

So, it will take them 5 hours to make 900 papers