Answer:
A
Step-by-step explanation:
Because of the border of tile, the length and width of the room are essentially being decreased by (1.5*2)=3 feet. The area is now therefore:
32*47=1,504 square feet, or answer choice A
Hope this helps!
So we can call the width of the rectangle x.
So then the length would be 4x.
The perimeter would then be 10x.
Since the perimeter is 70, we can say 70 = 10x.
And then simplify that to 7 = x.
So the length of a rectangle would be 28 cm, and the width would be 7.
So to find the area, just multiply length by width.
28*7 = 196 square cm
So the rectangle's area is 196 square cm.
I hope I helped!
Answer: A and C And B
Step-by-step explanation: (I AM NOT 100% SURE WAIT FOR SOME ELSE JUST IN CASE if you dont uh hope its right)
Answer:5
Step-by-step explanation:
Simplifying
8x + -20 = 3x + 5
Reorder the terms:
-20 + 8x = 3x + 5
Reorder the terms:
-20 + 8x = 5 + 3x
Solving
-20 + 8x = 5 + 3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x' to each side of the equation.
-20 + 8x + -3x = 5 + 3x + -3x
Combine like terms: 8x + -3x = 5x
-20 + 5x = 5 + 3x + -3x
Combine like terms: 3x + -3x = 0
-20 + 5x = 5 + 0
-20 + 5x = 5
Add '20' to each side of the equation.
-20 + 20 + 5x = 5 + 20
Combine like terms: -20 + 20 = 0
0 + 5x = 5 + 20
5x = 5 + 20
Combine like terms: 5 + 20 = 25
5x = 25
Divide each side by '5'.
x = 5
Simplifying
x = 5