SOLUTION: I have this word problem I can't figure out how to set it up: "A worker can cover a parking lot with asphalt in 10 hours. With the help of an assistant, the work can be done in 6 h

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Question 855034: I have this word problem I can't figure out how to set it up: "A worker can cover a parking lot with asphalt in 10 hours. With the help of an assistant, the work can be done in 6 hours. How long would it take the assistant, working alone, to cover the parking lot with asphalt?"
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/10+1/x=1/6
3/30+1/x=5/30
1/x=2/30
x=15