Answer: 
Step-by-step explanation:
Given
area of the rectangle is 
Suppose width is given by w
So, length is 
The area of a rectangle is 
putting values

length is 
Answer:
The area of the mat is 2/3 m^2
Step-by-step explanation:
Area of a rectangle is length times width or
A = l x w
8/9 x 3/4 =
24/36 =
2/3
Answer:
x = -10/13
Step-by-step explanation:
10x + 7 = -3x - 3
Add 3x to both sides
10x + 3x + 7 = -3x + 3x - 3
13x + 7 = 0x - 3
13x + 7 = -3
Subtract 7 from both sides
13x + 7 - 7 = -3 - 7
13x + 0 = -10
13x = -10
Divide both sides by 13
13x ÷ 13 = -10 ÷ 13
1x = -10/13
x = -10/13