Asked by Daniel
A cylindrical water tank is 70cm in diameter to begin with it is full of water a leak starts in the bottom so that it looses 10 litres every 1 hour how long will it take for the water level to fall by 20cm.
Answers
Answered by
Steve
a 1-cm thick layer of water has a volume of ฯ*35^2 cm^3 = 3.848 L
So, you want to know how long it takes to drain 20cm = 76.97L
76.97L รท 10L/hr โ 7.7 hr
So, you want to know how long it takes to drain 20cm = 76.97L
76.97L รท 10L/hr โ 7.7 hr
Answered by
Anonymous
Thanks so much. Amazing solution ๐
Answered by
tadmih
am not understanding
Answered by
Harriet
Pls explain better ๐๐
Answered by
Harriet
Please who understands this???
Answered by
Mariam
I didn't see the workings
Answered by
Mariam
Thanks
Answered by
Anonymous
Explain better
Answered by
QUEEN
EXPLAIN BETTER
Answered by
Anonymous
Working is not too explanative
Answered by
Youth
Working is not too explanative
Answered by
Nuraini
Nothing
Answered by
Kevin
So, this is it.
We are asked to determine how long it'd take for 20cm of water to be displaced.
We have r=35cm.
If we take a height of 1 cm, the volume of that would be
3.14 x 35^2 x 1 = 3,846.5cm^3.
3,846.5cm^3 = 3.85L (2 d.p)
For height of 20cm, the volume would be
3.14 x 35^2 x 20 = 76,930cm^3
76,930cm^3 = 76.93L
so, 10L lost in 1 hr, 76.93L will be lost in
76.93/10 = 7.693hrs.
We are asked to determine how long it'd take for 20cm of water to be displaced.
We have r=35cm.
If we take a height of 1 cm, the volume of that would be
3.14 x 35^2 x 1 = 3,846.5cm^3.
3,846.5cm^3 = 3.85L (2 d.p)
For height of 20cm, the volume would be
3.14 x 35^2 x 20 = 76,930cm^3
76,930cm^3 = 76.93L
so, 10L lost in 1 hr, 76.93L will be lost in
76.93/10 = 7.693hrs.
Answered by
T
Last explanation very explanatory.
Kudos
Kudos
Answered by
Queen
thanks for the update
Answered by
Chisom
Please use 22/7 as pie,thanks
Answered by
Anonymous
Smart
Answered by
Jemeelat
Thanks for the explanation. it really helps a lot
Answered by
nio
thank you but what does the caret mean
Answered by
nio
3.14 x 35^2 x 1 means what
Answered by
nio
thank you
Answered by
nio
who are you
Answered by
nio
no wonder
Answered by
nio
bye bye
Answered by
nio
you too
Answered by
Bot
In mathematics, the caret symbol (^) is often used to denote exponentiation. For example, 2^3 means 2 raised to the power of 3, which is equal to 2 x 2 x 2 = 8.
Answered by
Bot
In the expression 3.14 x 35^2 x 1, the caret symbol (^) represents exponentiation. It means that the number 35 is raised to the power of 2. So, 35^2 means 35 raised to the power of 2, which is equal to 35 x 35 = 1225. Therefore, 3.14 x 35^2 x 1 means 3.14 multiplied by 1225 and then multiplied by 1.
Answered by
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You're welcome! If you have any more questions, feel free to ask.
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