SOLUTION: Dean and his younger brother Sam are digging a hole to make an imu (underground oven) for the luau. Working together it takes them 1.5 hours to finish the hole. If it would take

Algebra ->  Linear-equations -> SOLUTION: Dean and his younger brother Sam are digging a hole to make an imu (underground oven) for the luau. Working together it takes them 1.5 hours to finish the hole. If it would take       Log On


   

Question 1113231: Dean and his younger brother Sam are digging a hole to make an imu (underground oven) for the luau. Working together it takes them 1.5 hours to finish the hole. If it would take Sam twice as long to finish the hole working alone as it would Dean, how long would it take Dean if he had to dig the hole by himself?
thank you!
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Time for Sam              2x
Time for Dean              x
Time both combined        1.5

1%2F%282x%29%2B1%2Fx=1%2F1.5

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1%2F%282x%29%2B2%2F%282x%29=2%2F3
3%2F%282x%29=2%2F3
2x%2F3=3%2F2
x=9%2F4
highlight%28x=2%261%2F4%29--------time in hours for Dean to dig the hole alone.