Kalon and his friend marna own a chimney sweep service company. working together, they can clean a chimney in 1 5/7 hours. if it takes kalon 4 hours to clean a 20-foot chimney by himself, how long does it take marna to clean the same size chimney by herself?

It takes 3 hours for Marna to clean the same size chimney by herself.

Step-by-step explanation:

Kalon and his friend Marna can clean a chimney in hours

They can do a part of work in 1 hour =

Kalon can complete work in 4 hours

He can do a part of work in 1 hour =

So,  Marna  can do a part of work in 1 hour =  

                                                                       =  

So, Marna can part of work in hour = 1

Marna can complete work in hour = 3

Hence it takes 3 hours for Marna to clean the same size chimney by herself.

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.