Answer:
![x \approx 2.18](https://tex.z-dn.net/?f=x%20%5Capprox%202.18)
Step-by-step explanation:
![3(x+4.5x)=36](https://tex.z-dn.net/?f=3%28x%2B4.5x%29%3D36)
we can use the distributive property and get
![3(x)+3(4.5x)=36\\\\3x+13.5x=36\\\\](https://tex.z-dn.net/?f=3%28x%29%2B3%284.5x%29%3D36%5C%5C%5C%5C3x%2B13.5x%3D36%5C%5C%5C%5C)
and we can add like terms
![(3+13.5)x=36\\\\16.5x=36](https://tex.z-dn.net/?f=%283%2B13.5%29x%3D36%5C%5C%5C%5C16.5x%3D36)
and know we divide both sides by 16.5
![16.5x*(\frac{1}{16.5})=36*(\frac{1}{16.5})\\\\x=\frac{36}{16.5}](https://tex.z-dn.net/?f=16.5x%2A%28%5Cfrac%7B1%7D%7B16.5%7D%29%3D36%2A%28%5Cfrac%7B1%7D%7B16.5%7D%29%5C%5C%5C%5Cx%3D%5Cfrac%7B36%7D%7B16.5%7D)
and doing the dvision we get that
![x\approx 2.18](https://tex.z-dn.net/?f=x%5Capprox%202.18)
I cant see all of 11 and 14
12:
![3f = 18 \\ \frac{3f}{3} = \frac{18}{3} \\ f = 6](https://tex.z-dn.net/?f=3f%20%3D%2018%20%5C%5C%20%20%20%5Cfrac%7B3f%7D%7B3%7D%20%20%3D%20%20%5Cfrac%7B18%7D%7B3%7D%20%20%5C%5C%20f%20%3D%206)
13:
![3f = {3}^{2} \\ 3f = 9 \\ \frac{3f}{3} = \frac{9}{3} \\ f = 3](https://tex.z-dn.net/?f=3f%20%3D%20%20%7B3%7D%5E%7B2%7D%20%20%5C%5C%203f%20%3D%209%20%5C%5C%20%20%5Cfrac%7B3f%7D%7B3%7D%20%20%3D%20%20%5Cfrac%7B9%7D%7B3%7D%20%20%5C%5C%20f%20%3D%203)
15:
![3h = 9 + 10 \\ 3h = 19 \\ \frac{3h}{3} = \frac{19}{3} \\ h = 6.3](https://tex.z-dn.net/?f=3h%20%3D%209%20%2B%2010%20%5C%5C%203h%20%3D%2019%20%5C%5C%20%20%5Cfrac%7B3h%7D%7B3%7D%20%20%3D%20%20%5Cfrac%7B19%7D%7B3%7D%20%20%5C%5C%20h%20%3D%206.3)
16:
Answer:
45.6 mph
Step-by-step explanation:
Well,
If Bird A is EXACTLY 5 times as fast as Bird B, then it can reach 228 mph and Bird A can only reach 45.6 mph.