Lea and Marie are washing all the windows in their house. It would take Lea 80 minutes to wash the windows by herself, and it would take Marie 60 minutes to wash them by herself. Lea creates a table so she can find out how long it will take to wash the windows if they work together. What is the missing value in the table that represents the rate for Marie?
(I have to post the table rq)

Question

urmum · Answer

attachment

Razor · Answer

Pay attention to the format of the table, does it look consistent? Like there's a pattern?

urmum · Answer

@razor wrote:

Pay attention to the format of the table, does it look consistent? Like there's a pattern?

oh yes so its 1/60?

Razor · Answer

Yes :o Seeee it was easy, wasn't it? For questions like this it's really just about paying attention

urmum · Answer

@razor wrote:

Yes :o Seeee it was easy, wasn't it? For questions like this it's really just about paying attention

Lol thank you-you were such a big help

1 attachment