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anonymous

  • 4 years ago

I need someone smart please; Ashley is wanting to fill her pool for the summer. Her hose will fill the pool in 4 hours. There is a small leak in the pool that would drain a full pool in 120 hours. How long would it take her to completely fill the pool?

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  1. anonymous
    • 4 years ago
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    LOL Whoever is here things they r smart :D

  2. anonymous
    • 4 years ago
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    *thinks

  3. anonymous
    • 4 years ago
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    |dw:1328068480164:dw|

  4. anonymous
    • 4 years ago
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    Do u have a tablet?

  5. anonymous
    • 4 years ago
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    what a smarty pants

  6. anonymous
    • 4 years ago
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    I cant read the first line, and the ends of any line because the picture cuts off.

  7. anonymous
    • 4 years ago
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    so just zoom out i see it perfectly

  8. anonymous
    • 4 years ago
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    i cant zoom out...

  9. anonymous
    • 4 years ago
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    Press the control button and minus together

  10. anonymous
    • 4 years ago
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    neato!

  11. anonymous
    • 4 years ago
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    LOL

  12. anonymous
    • 4 years ago
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    care to explain dnquark?

  13. anonymous
    • 4 years ago
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    well, you need to compare two rates. if you know you can fill a pool in 4 hours, that means you can fill 1/4 pools per hour BUT you are losing water at the rate of 1/120 pools per hour. So, the net amount in is that difference, (1/4-1/120) pools per hour. But the problem asks about hours per pool, so you take the reciprocal and get approx. 4.14

  14. dumbcow
    • 4 years ago
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    its a matter of subtracting rates: rate In = 1 pool every 4 hrs rate Out = 1 pool every 120 hrs Net rate = 1/4 - 1/120 = 30/120 - 1/120 = 29/120 Rate * time = 1 pool time is reciprocal of rate --> 120/29 = 4.138

  15. anonymous
    • 4 years ago
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    That makes a little more sense. Thanks

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