Answer:
option a and d
Step-by-step explanation:
![\frac{3}{4} = \frac{2x - 1}{2y + 4} \\ 3(2y + 4) = 4(2x - 1) \\ 6y + 12 = 8x - 4 \\ now \\ 6y = 8x - 4 - 12 \\ 6y = 8x - 16 \\ y = \frac{8x - 16}{6} \\ y = \frac{8x}{6} - \frac{16}{6} \\ y = \frac{4x}{3} - \frac{8}{3} \\ y = \frac{4}{3} x - \frac{8}{3} \\a nd \\ \\ 6y + 12 = 8x - 4 \\ 6y + 12 + 4 = 8x \\ 6y + 16 = 8x \\ \frac{6y + 16}{8} = x \\ \frac{6y}{8} + \frac{16}{8} = x \\ \frac{3y}{4} + 2 = x \\ x = \frac{3}{4} y + 2](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B4%7D%20%20%3D%20%20%5Cfrac%7B2x%20-%201%7D%7B2y%20%2B%204%7D%20%5C%5C%203%282y%20%2B%204%29%20%3D%204%282x%20-%201%29%20%5C%5C%206y%20%2B%2012%20%3D%208x%20-%204%20%5C%5C%20now%20%5C%5C%206y%20%3D%208x%20-%204%20-%2012%20%5C%5C%206y%20%3D%208x%20-%2016%20%5C%5C%20y%20%3D%20%20%5Cfrac%7B8x%20-%2016%7D%7B6%7D%20%5C%5C%20%20%20y%20%3D%20%20%5Cfrac%7B8x%7D%7B6%7D%20%20-%20%20%5Cfrac%7B16%7D%7B6%7D%20%20%5C%5C%20y%20%3D%20%20%5Cfrac%7B4x%7D%7B3%7D%20%20-%20%20%5Cfrac%7B8%7D%7B3%7D%20%20%5C%5C%20y%20%3D%20%20%5Cfrac%7B4%7D%7B3%7D%20x%20-%20%20%5Cfrac%7B8%7D%7B3%7D%20%20%5C%5Ca%20nd%20%5C%5C%20%20%5C%5C%206y%20%2B%2012%20%3D%208x%20-%204%20%5C%5C%20%206y%20%2B%2012%20%2B%204%20%3D%208x%20%5C%5C%206y%20%2B%2016%20%3D%208x%20%5C%5C%20%20%5Cfrac%7B6y%20%2B%2016%7D%7B8%7D%20%20%3D%20x%20%5C%5C%20%20%5Cfrac%7B6y%7D%7B8%7D%20%20%20%2B%20%20%5Cfrac%7B16%7D%7B8%7D%20%20%3D%20x%20%5C%5C%20%20%5Cfrac%7B3y%7D%7B4%7D%20%20%2B%202%20%3D%20x%20%5C%5C%20%20x%20%3D%20%5Cfrac%7B3%7D%7B4%7D%20y%20%2B%202)
Answer:
The final height of the balloon is 1621.242 feet
Step-by-step explanation:
In this question, we are to calculate the final height of a ballon that rises and falls
Initial height rise it has from the ground was
2,150.825 feet
0.825 feet to fraction is ; 825/1000 = 33/40
Thus it is 2,150 33/40
We no subtract the height to which it falls by which is 583 1/3 feet
This would be;
2,150 33/40 - 583 1/3
= 88,183/40 - 1750/3
= (264,549-70,000)/120 = 194549/120 = 1,621.241666666667 which is approximately 1621.242 feet
D: 1/6 * 2 = 2/12
hope this helps :) (please mark brainliest!)