SOLUTION: A landscaper can prepare and seed a new lawn in 12 hours. If he works with an assistant, the job takes 8 hours. How long would it take the assistant, working alone, to complete the

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A landscaper can prepare and seed a new lawn in 12 hours. If he works with an assistant, the job takes 8 hours. How long would it take the assistant, working alone, to complete the      Log On


   

Question 941322: A landscaper can prepare and seed a new lawn in 12 hours. If he works with an assistant, the job takes 8 hours. How long would it take the assistant, working alone, to complete the job.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Add their rates of working
to get their rate working together
+1%2F12+%2B+1%2Ft+=+1%2F8+
Multiply both sides by +24t+
+2t+%2B+24+=+3t+
+t+=+24+
The assistant, working alone, does the job in 24 hrs