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.