Question

I need equations written out for the following problem. Please include equations and answer. Thank you!

Buck and Zack were hired to remove vinyl tile from the hallways of an old hotel. They could clean 15 feet of hallway in 8 hours, which was their standard day. When Zack was out sick, Buck was able to clean only 6 feet of hallway that day, but he quit early, after 7 hours. If Buck were out sick and Zack had to do all the work, and Zack worked for 9 hours, then how many feet of hallway could he clear?

Answer 1

Buck can clear feet of the hallway per hour

Let Zack clear x feet of the hallway per hour

Together they clear feet per hour

And so together in 8 hours they clear

So that feet of the hallway is cleared by Zack per hour

In Zack worked for 9 hours, he could clear feet

Which is approximately

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