Question

A group of college students are volunteering for Help the Homeless during their spring break. They are putting the finishing touches on a house they built. Working alone, Irina can paint a certain room in 7 hours. Paulo can paint the same room in 6 hours. Write an equation that can be used to find how long it will take them working together to paint the room. How many hours will it take them to paint the room? If necessary, round your answer to the nearest hundredth.

Answer 1

I'm not sure...but is it like 7t+6t, whereas t is time?

Answer 2

thanks

Answer 3

I'm not sure tho...

Answer 4

but if im right, you're able to do the rest?

Answer 5

yeah im still confuseed

Answer 6

me too. we have to know how large room is. but i think all they want is an expression