100 x 50 gives you the surface area of the bottom of the tank. This then allows you to know that each 5000cm^2 of water raises the height of water in the tank by 1 cm. Hope this helps!
I'll try! 1. Work out the volume of the pool. (Split this into a cuboid and a triangular prism) 2. Convert this volume into litres. 3. See how long it takes to fill at 5 litres per second! Best of luck!
It is a tough question with lots of steps. 1. Work out the volume of the tank (100 x 50 x 60) 2. You are told that the tank is a third full of water so divide your answer by 3. 3. You now have some marks. 4. Now we have to add the water from the barrel. 5. It the tank was 1cm high the volume of water would be (100 x 50 x 1) = 5000 cm^3 6. If the tank was 2cm high the volume of water would be (100 x 50 x 2) = 10 000 cm^3 7. So each 5000cm^3 of water raises the height of water in the tank by 1 cm. 8. You have 18 000 cm^3 of water in the barrel so this raises the height of water in the tank by 3.6cm
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Thank you for this video really helped me with my homework :) :) :)
Hii can you explain 16 again, I don’t understand why we have to do 100x50x1
100 x 50 gives you the surface area of the bottom of the tank. This then allows you to know that each 5000cm^2 of water raises the height of water in the tank by 1 cm. Hope this helps!
Hi , can you please explain number 21 to me please !
I'll try! 1. Work out the volume of the pool. (Split this into a cuboid and a triangular prism)
2. Convert this volume into litres. 3. See how long it takes to fill at 5 litres per second! Best of luck!
There are not 4 sides on a Triangle my guy
I was just checking people were paying attention :) Good spot and thanks for letting me know.
@@mathymathymaths1089 hmmmm ok sure
@@alexwright751 Lollll
@@mathymathymaths1089 so whats the answer?
Click here for a blank copy of the paper - goo.gl/fp9VTg
i dont get 16
It is a tough question with lots of steps.
1. Work out the volume of the tank (100 x 50 x 60)
2. You are told that the tank is a third full of water so divide your answer by 3.
3. You now have some marks.
4. Now we have to add the water from the barrel.
5. It the tank was 1cm high the volume of water would be (100 x 50 x 1) = 5000 cm^3
6. If the tank was 2cm high the volume of water would be (100 x 50 x 2) = 10 000 cm^3
7. So each 5000cm^3 of water raises the height of water in the tank by 1 cm.
8. You have 18 000 cm^3 of water in the barrel so this raises the height of water in the tank by 3.6cm
thanks