Let
x---------> the thickness of the frame in feet
At-------> Area of the mirror and the frame in square feet
we know that
------> equation 
--------> equation 
equate equation
and equation 

therefore
the answer is the option

Answer:
42
Step-by-step explanation:
x=3
6+x6+x6
6+(3)6+(3)6
6=6
(3)6=18
(3)6=18
6+18+18
24+18
42
Hope this helps ;) ❤❤❤
Answer:
Perimeter = 40 inches
Step-by-step explanation:
Length = 16 inches
Width = 25% of length (16)
= 25% of 16
25% = 1/4
Width = 1/4 x 16
= 4 inches
Length = 16 inches
Width = 4 inches
Perimeter of a rectangle = length + length + width + width:
= 16 + 16 + 4 + 4
= 32 + 8
= 40
PERIMETER = 40 inches
So glad I could help :)
Answer:
Yes.
Step-by-step explanation:
By adding like terms, -x - 2x = -3x. Therefore, they are equivalent.