Answer:
![\displaystyle {r}^{} = 6](https://tex.z-dn.net/?f=%20%5Cdisplaystyle%20%20%20%7Br%7D%5E%7B%7D%20%20%3D%206)
Step-by-step explanation:
remember that,
![\displaystyle V _{ \rm sphere} = \frac{4}{3} \pi {r}^{3}](https://tex.z-dn.net/?f=%20%5Cdisplaystyle%20V%20_%7B%20%5Crm%20sphere%7D%20%3D%20%20%5Cfrac%7B4%7D%7B3%7D%20%5Cpi%20%7Br%7D%5E%7B3%7D%20)
given that,
thus substitute:
![\displaystyle \frac{4}{3} \pi {r}^{3} = 288\pi](https://tex.z-dn.net/?f=%20%5Cdisplaystyle%20%20%20%5Cfrac%7B4%7D%7B3%7D%20%5Cpi%20%7Br%7D%5E%7B3%7D%20%20%3D%20288%5Cpi)
divide both sides by 4/3π:
![\displaystyle {r}^{3} = 216](https://tex.z-dn.net/?f=%20%5Cdisplaystyle%20%20%20%7Br%7D%5E%7B3%7D%20%20%3D%20216)
cubic root both sides:
![\displaystyle {r}^{} = 6](https://tex.z-dn.net/?f=%20%5Cdisplaystyle%20%20%20%7Br%7D%5E%7B%7D%20%20%3D%206)
and we are done!
Answer:
so $21+45%=30.45. meaning that pair of boots cost 30.45 so two pairs of boots would cost $60.90
Answer:
x = -1
Step-by-step explanation:
AB + BC = AC = 28
the way from A to C goes through B.
so, the total way of A to C is the sum of the way from A to B and then from B to C.
=>
(5x + 10) + (2x + 25) = 28
7x + 35 = 28
7x = -7
x = -1
35 percent got eaten.
To solve: you’d take the number of flowers eaten, 7. And you’d divide it by the overall number, 20. Then you’d get 0.35, which would be your percent.