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melamori03 [73]
3 years ago
11

Help please.

Mathematics
1 answer:
gavmur [86]3 years ago
5 0
I think the answer is 16.21 degrees
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With water from one hose, a swimming pool can be filled in 9 hours. A second, larger hose used alone can fill the pool in 2 hour
Monica [59]

1/9 + 1/2 = 1/x

Let x = length of time it will take both hoses to work together

Multiply both sides by 18x.

2x + 9x = 18

10x = 18

x = 18/10

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x = 1.8 hours

In other words, if both hoses work together, the pool can be filled in 1 hour and 48 minutes.

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3 years ago
a father is twice as old as his son. 20 yrs ago the father was four times as old as his son. find their present ages
Roman55 [17]

Answer:

son's present age = 30

father's present age=60

Step-by-step explanation:

his son's present age = x years

his father's present age = 2x years

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before 20 years father's age=(2x-20) years4(x-20)=(2x-20)

4x-80=2x-20

4x-2x=80-20

2x=60

x=30

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2 years ago
20 points..Please Help!!! I don't understand what to do...can someone walk me through this???
Juli2301 [7.4K]
A) 3. This is the base number somebody would win without ever practicing. 

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3 years ago
Week 6<br> Please answer with clear instructions so that i can apply this to other questions
Crazy boy [7]

Answer:

4

Step-by-step explanation:

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4 - (-4) /1  - (-1) =

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2 years ago
a fence is being built around a rectangular a garden that is 8 1/2 feet by 6 1/3 feet. fencing comes in panels. each panel is 2/
Sloan [31]
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