Answer:
Step-by-step explanation:
let, the length is z
thus the ratio will be 5z : 4z
perimeter = 2 (a + b)
360 = 2 ( 5z + 4z )
180 = 9z
z = 20 cm
length = 100 cm and width = 80cm
area = length * width
area = 100*80
area = 8000cm²
Answer:
7 is x
Step-by-step explanation:
1) Divide both sides by 5 to give
4=-3+x
x=4+3
x=7
2) Multiply 5 with the RHS (Right Hand Side) to give
20=-15+5x
20+15=5x
35=5x
x=7
The formula for it is A=2(w*l+h*l+h*w)
So now to put values in A=2(4*5+7*5+7*4)
Now put it in a calculator and you get 166
I hope I helped! ♥
