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Mathematics 21 Online
OpenStudy (anonymous):

Will can plow a field in 6 hours. If his brother Sam helps him, it will take 4 hours. How long would it take Sam to do the job alone?

OpenStudy (anonymous):

1/6 + 1/x = 1/4

OpenStudy (anonymous):

solve for x

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

yw

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