Answer:
98
Step-by-step explanation:
From the statement of similarity, we can write this proportion.
TV/MV = UV/LV
28/x = 16/56
16x = 28 × 56
x = 7 × 14
x = 98
Answer:
Surface area of cube = 6x²
surface area of cube = surface area of sphere
it means that 6x²=4πr²
x²=
![\frac{4\pi {r}^{2} }{6} = \frac{4 \pi9}{6} = \frac{4\pi3}{2} = 6\pi](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%5Cpi%20%7Br%7D%5E%7B2%7D%20%20%7D%7B6%7D%20%20%3D%20%20%5Cfrac%7B4%20%5Cpi9%7D%7B6%7D%20%20%3D%20%20%5Cfrac%7B4%5Cpi3%7D%7B2%7D%20%20%3D%206%5Cpi)
![x = \sqrt{6\pi}](https://tex.z-dn.net/?f=x%20%3D%20%20%20%5Csqrt%7B6%5Cpi%7D%20)
![\sqrt{6\pi} = \sqrt{k\pi}](https://tex.z-dn.net/?f=%20%5Csqrt%7B6%5Cpi%7D%20%20%3D%20%20%5Csqrt%7Bk%5Cpi%7D%20)
![6\pi = \pi \: k](https://tex.z-dn.net/?f=6%5Cpi%20%3D%20%5Cpi%20%5C%3A%20k)
![k = 6](https://tex.z-dn.net/?f=k%20%3D%206)
Answer:
you first start by making your equation: 45 +.25x = 70 +.15x. then subtract .15x from both sides. it should look like 45 +.10x = 70. subtract 45 from both sides then you get .10x = 25. divide 10 to both sides and you get 250. so the two companies will be the same at 250 texts.
Step-by-step explanation:
Answer:
2x+2x+2=4x+2
4x+2=4x+2
Step-by-step explanation:
15 is 16.66666 percent of 90.