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PilotLPTM [1.2K]
3 years ago
15

working together, shawn and hector can install a tile floor in 6 hours. it would take shawn 9 hours to do the job alone. what is

the value of r, the part of the tile that hector could install in 1 hour?

Mathematics
2 answers:
Vikki [24]3 years ago
8 0
First, let x be the number of hours it will take for Hector to finish the same job alone. This means that every hour, Hector can do 1/x of the job. The amount of work done by Shawn and Hector in 6 hours should be equal to 1 complete work. This can be expressed as,
                      (1/9 + 1/x)(6) = 1
The value of x is 18. Thus, Hector can to 1/18 of the job in one hour. 
Evgen [1.6K]3 years ago
5 0

Answer:

A. 1/18

Step-by-step explanation:

Just did it!!

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