Really need help, I'm almost done please!

Question

anonymous · Answer

Hayden is a manager at a landscaping company. He has 3 workers to landscape an entire park, Cody, Kaitlyn, and Joseph. Cody can complete the project in 8 hours. Kaitlyn can complete the project in 6 hours. Joseph is new, so no one knows how long it will take him.

Hayden assigns all of them to complete the park together. Explain to Hayden how this project can tell him how long it would take Joseph to complete the project if he worked by himself. Use complete sentences.

anonymous · Answer

you have (1/C + 1/K + 1/J)(8) = 1
given C = 8 and K = 6
you can solve for J

anonymous · Answer

How do we do that

anonymous · Answer

oops my equation was wrong. Acctually there isn't enough info. We need to know how long it takes ALL 3 to finish the project
(1/C + 1/K + 1/J) (t) = 1

anonymous · Answer

so what do we do

anonymous · Answer

you don't do anything. It can not be solve

anonymous · Answer

yes i am correct

anonymous · Answer

No you aren't...it can be solved.