Question

The perimeter of the rectangle below is 102 ft. What is the value of X

Answer 1

Perimeter = length of all sides added together


`102=(3x+5)+(3x+5)+(7x-4)+(7x-4)`


`102=2(3x+5)+2(7x-4)`


`102=6x+10+14x-8`


`102=20x+2`


`102-2=20x`


`100=20x`


`x= (100)/(20)`


`\left[\begin{array}{ccc}x=5\end{array}\right]`

Hope this helped