Answer:
24 weeks
Step-by-step explanation:
12 oz: 16 weeks :: 18 oz: x weeks -->
12/16 = 18/x -->
x = 18*16/12 weeks -->
x = 24 weeks
Answer: 280 miles I think
Step-by-step explanation:
At first, he drives 110. Then hes at the 180 mile mark. And at the end he is at 280. 110 + 70 + 100. I’m very sorry if I’m wrong.
well, the balloon original was of radius = 2 = r, he then put it 1 cm extra twice, so it went up to 4 = r. The balloon original had a radius of 2 and then it went up to 4.
![\bf \textit{volume of a sphere, \underline{originally}}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r = 2 \end{cases}\implies V=\cfrac{4\pi (2)^3}{3}\implies V=\cfrac{32\pi }{3} \\\\\\ \textit{volume of a sphere, \underline{later on}}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r = 4 \end{cases}\implies V=\cfrac{4\pi (4)^3}{3}\implies V=\cfrac{256\pi }{3} \\\\[-0.35em] ~\dotfill](https://tex.z-dn.net/?f=%5Cbf%20%5Ctextit%7Bvolume%20of%20a%20sphere%2C%20%5Cunderline%7Boriginally%7D%7D%5C%5C%5C%5C%20V%3D%5Ccfrac%7B4%5Cpi%20r%5E3%7D%7B3%7D~~%20%5Cbegin%7Bcases%7D%20r%3Dradius%5C%5C%5B-0.5em%5D%20%5Chrulefill%5C%5C%20r%20%3D%202%20%5Cend%7Bcases%7D%5Cimplies%20V%3D%5Ccfrac%7B4%5Cpi%20%282%29%5E3%7D%7B3%7D%5Cimplies%20V%3D%5Ccfrac%7B32%5Cpi%20%7D%7B3%7D%20%5C%5C%5C%5C%5C%5C%20%5Ctextit%7Bvolume%20of%20a%20sphere%2C%20%5Cunderline%7Blater%20on%7D%7D%5C%5C%5C%5C%20V%3D%5Ccfrac%7B4%5Cpi%20r%5E3%7D%7B3%7D~~%20%5Cbegin%7Bcases%7D%20r%3Dradius%5C%5C%5B-0.5em%5D%20%5Chrulefill%5C%5C%20r%20%3D%204%20%5Cend%7Bcases%7D%5Cimplies%20V%3D%5Ccfrac%7B4%5Cpi%20%284%29%5E3%7D%7B3%7D%5Cimplies%20V%3D%5Ccfrac%7B256%5Cpi%20%7D%7B3%7D%20%5C%5C%5C%5C%5B-0.35em%5D%20~%5Cdotfill)
X1=-5 and X2=9 that’s the answer
