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lisov135 [29]
3 years ago
10

working alone, aliyah can dig a 10ft by 10 ft hole is 6 hours. one day her friend eugene helped her and it only took 3.75 hours.

how long would it take eugene to do it alone? disclaimer: the answer is 11.95 hours, but i keep getting 10. please use the 1/x+1/y=1/z strategy
Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0

Answer:

I think the answer is 10 hours

the 11.95 seems wrong

Step-by-step explanation:

\frac{1}{6}   + \frac{1}{y}   = \frac{1}{3.75}

multiply by 22.5 y

3.75 y + 22.5 = 6y

y = 10

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