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Wewaii [24]
3 years ago
11

Takes a smaller hose 4 times as long to fill a small swimming pool as it does a larger hose. It takes both hoses working togethe

r 20 minutes to fill the
Swimming pool. How long will it take the smaller hose to fill the pool by itself?
Do not do any rounding
Mathematics
1 answer:
matrenka [14]3 years ago
4 0
It will take 80 minutes to fill the pool 20x4=80
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How many positive integers less than 60 have an even number of positive divisors?
saul85 [17]

Answer:

There are 52 such numbers that have even divisors.

Step-by-step explanation:

All the  numbers between 2 and 59 have an EVEN number of positive divisors.

Except the Perfect Squares..

or 4, 9, 16, 25, 36 and 49, which have 3 divisors each.

So:

59 - 2 + 1 =58

Now subtract 58 from 6 (perfect squares)

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8 0
3 years ago
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alexandr402 [8]

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89.008

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