Answer:
Step-by-step explanation:
Given:
Adding the above two equations, we get
Therefore, an equivalent system of equations using the sum of the system and the first equation is :
1. squaring
2. four triangles and the square with side length "c"
3. big square (side length: a+b)
Answer:
11
Step-by-step explanation:
The sum of the remote interior angles = the exterior angle
66 + 7x + 7 = 12x + 18
7x + 73 = 12x + 18
55 = 5x
x = 11
Answer:
The area of half of the garden in square meters
Step-by-step explanation:
m+f=38
(f-4)^2=m-4
f^2=m IF their age is 30 combined
4^2=16
16=16
Fred is 4, Mabel is 16.
