SOLUTION: person 1 can do a certain job in fifteen minutes, and person 2 can do the same job in thirty minutes. when completing the job together, which expression would be used to represent
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Question 1156190: person 1 can do a certain job in fifteen minutes, and person 2 can do the same job in thirty minutes. when completing the job together, which expression would be used to represent the amount of work done by person 1?. Found 2 solutions by greenestamps, josmiceli:Answer by greenestamps(13203) (Show Source):
The first person works twice as fast; so when working together with the second person, the first person does 2/3 of the job and the second person does 1/3.
You can put this solution on YOUR website! Add their rates of working
Let = time in minutes to
finish job working together
Multiply both sides by min
The whole job gets done in min
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To get the fraction of the job done by worker 1:
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To get the fraction done by worker 2:
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Worker 1 does 2/3 of the job in 10 min
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Note that I can write the equation like this:
