2(w+60) + 2w= 520
perimeter of a rectangle = 2(length)+2(width)
length=w+60ft
width=w
perimeter=520ft
520ft=2(w+60)+2w
DE equals 7.
Because it is the same length of BE.
Answer:
![(i)area \: and \: perimeter \\ (ii) \: 12cm \\ (iii) \: 16m\\ (iv) \: {32cm}^{2} \\ (v) \: 5cm \\ (vi) \: {50 \: cm}^{2} \\ (vii) \: 8cm \\ (viii) \: perimeter](https://tex.z-dn.net/?f=%28i%29area%20%5C%3A%20and%20%5C%3A%20perimeter%20%5C%5C%20%28ii%29%20%5C%3A%2012cm%20%5C%5C%20%28iii%29%20%5C%3A%2016m%5C%5C%20%28iv%29%20%5C%3A%20%20%7B32cm%7D%5E%7B2%7D%20%20%5C%5C%20%28v%29%20%5C%3A%205cm%20%5C%5C%20%28vi%29%20%5C%3A%20%20%7B50%20%5C%3A%20cm%7D%5E%7B2%7D%20%20%5C%5C%20%28vii%29%20%5C%3A%208cm%20%5C%5C%20%28viii%29%20%5C%3A%20perimeter)
Step-by-step explanation:
I'm not sure about the first one
Answer:
Step-by-step explanation:
![3^{4x - 5}=(1/27)^{2x + 10}](https://tex.z-dn.net/?f=3%5E%7B4x%20-%205%7D%3D%281%2F27%29%5E%7B2x%20%2B%2010%7D)
![3^{4x - 5}=(1/3^3)^{2x + 10}](https://tex.z-dn.net/?f=3%5E%7B4x%20-%205%7D%3D%281%2F3%5E3%29%5E%7B2x%20%2B%2010%7D)
![3^{4x - 5}=(3^{-3})^{2x + 10}](https://tex.z-dn.net/?f=3%5E%7B4x%20-%205%7D%3D%283%5E%7B-3%7D%29%5E%7B2x%20%2B%2010%7D)
![3^{4x - 5}=3^{-3*(2x + 10)}](https://tex.z-dn.net/?f=3%5E%7B4x%20-%205%7D%3D3%5E%7B-3%2A%282x%20%2B%2010%29%7D)
- 4x - 5 = - 3*(2x + 10)
- 4x - 5 = - 6x - 30
- 4x + 6x = 5 - 30
- 10x = - 25
- x = - 2.5