Answer:
2 lines of symmetry would be 7
Step-by-step explanation:
it has two lines
hm, well I cant write a story FOR you, but I can give ya some ideas! I suggest going a more comedic route, something over dramatic to fit the fact you have to write a story about math symbols haha. maybe a forbidden love story between them. maybe personify the symbols in your writing, making them more human. or go full crazy and make them walking talking symbols. maybe they're doodles on a white board, making an epic adventure through the scribbles! dont over think creative prompts like this, just have fun and be creative! happy writing ♡
Answer with explanation:
It is gven that, Three taps A, B and C are emptying the tank.
Time taken by Tap A to empty the tank completely =17.0 Hours
Time taken by Tap B to empty the tank completely =6.8 Hours
Time taken by Tap C to empty the tank completely =5.2 Hours
Time taken by three taps, A , B and C together to empty the tank completely
![=\frac{1}{17}+\frac{1}{6.8}+\frac{1}{5.2}\\\\=\frac{14}{68}+\frac{10}{52}\\\\=\frac{88}{221}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1%7D%7B17%7D%2B%5Cfrac%7B1%7D%7B6.8%7D%2B%5Cfrac%7B1%7D%7B5.2%7D%5C%5C%5C%5C%3D%5Cfrac%7B14%7D%7B68%7D%2B%5Cfrac%7B10%7D%7B52%7D%5C%5C%5C%5C%3D%5Cfrac%7B88%7D%7B221%7D)
Let V be the volume of water in the tank.
→Volume of water in the tank after half an hour when the tap C has been blocked
![=\frac{88}{221} \times \frac{30}{60}\\\\=\frac{44V}{221}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B88%7D%7B221%7D%20%5Ctimes%20%5Cfrac%7B30%7D%7B60%7D%5C%5C%5C%5C%3D%5Cfrac%7B44V%7D%7B221%7D)
→→% of Volume of water in the tank after half an hour, when the tap C has been blocked
![=\frac{44V}{221V}\times 100\\\\=19.9095](https://tex.z-dn.net/?f=%3D%5Cfrac%7B44V%7D%7B221V%7D%5Ctimes%20100%5C%5C%5C%5C%3D19.9095)
=19.91%
Let Time taken by the taps to empty the tank =t hours
When volume of water out of the tank is equal to volume of water inside the tank , the tank is said to be emptied.
![\rightarrow \frac{88V}{221}\times t=V\\\\t=\frac{221}{88}\\\\t=2.52 \text{Hours}](https://tex.z-dn.net/?f=%5Crightarrow%20%5Cfrac%7B88V%7D%7B221%7D%5Ctimes%20t%3DV%5C%5C%5C%5Ct%3D%5Cfrac%7B221%7D%7B88%7D%5C%5C%5C%5Ct%3D2.52%20%5Ctext%7BHours%7D)
=2.52 hours (Approx)