preview

Maths Assignment

Decent Essays

Maths assignment Part A Will you have time to fill the pool with your garden hose? I will not be able to fill the pool because my flow rate is not fast enough. My flow rate is 6.7L/min and I have 195 min to fill the pool up. 6.7x195 = 1.3L but I need to fill 2.9L so I would not be able to fill the pool. How much will it cost to fill the pool? I need to fill 2.9KL of the pool. The water tier 2 cost $1.33 per KL and the bulk water costs $2.61 so 1.33 + 2.61 = $3.94 but I need just under 3KL so I would need to times 3.941 by 2.9 and that equals $11.42 the pool cost $11.42 to fill up. Is there a better short term solution to this problem? There are two short term solutions. One of them is to go to the pool shop and buy more hoses so you can …show more content…

For the square prism I had to find make it hold 0.5KL which is the same as 0.5m3. I made the length of the prism 1.5 and the Hight 1.5 but I needed to find the width so I put it as A. The equation is 0.5m3 = 1.5x1.5xA so I took the a out and it equals 2.25. Which made the equation 0.5m3 =2.25xA. I then divide 2.25 by 2.25 and it cancelled out but what you do to one side you do to the other so 0.5 divided by 2.25 = 0.22 which gave me the answer for a. In The equation I can now put 0.22 for a and then it would be, 1.15x1.15x0.22 = 0.495cm. Now for the square prism its basically the exact same but with the different measurements. Volume=LxWxH, the length is 2.5cm, the width is 2.2cm but we don’t know what the hight is. We need to fill 0.5m3, I don’t know a so I take it out and then it becomes 2.5x2.2 and that equals 5.5, so then we can do 0.5=5.5xA and if I divide 5.5x5.5 it cancels out and if you divide one side you divide the other so it would be 0.5 divided by 5.5 = 0.09. So we can now go to the equation and but the answer in, 2.5x2.2x0.09=0.495. I think the square would be better for a water feature because it would fit better and not be as wide, it would also be a good size, if I chose the rectangular prism it would be a lot wider and longer but not that tall which is pretty annoying I chose the square because it would be the easiest to build and it would be easier to get the measurements but a circle would be super hard. For my part b I have chosen the square prism because it would fit better, be easier to get measurements and it would be taller that

Get Access