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lozanna [386]
1 year ago
7

If Jill's age is 84 and johns age is 21 how many years ago was Jill 10 times older than john

Mathematics
1 answer:
I am Lyosha [343]1 year ago
5 0
Not sure if this is right but i gave it a go. hope it helps

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One inlet pipe can fill an empty pool in 6 hours, and a drain can empty the pool in 12 hours. How long will it take the pipe to
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Answer: 12 hours

Step-by-step explanation:

Let x = time it takes to fill the pool if the inlet pipe and drain pipe are both open

1/6 = portion of pool filled per hour by the inlet pipe

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Then, 1/6 - 1/12 = 1/x

Multiply by the LCD, 12x, to obtain

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2 years ago
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Step-by-step explanation:

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Add the terms.

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3 years ago
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