Question

The rectangle below has a total perimeter of 190 in:

rectangle with width of 4

Which of the following equations can be used to determine the length of the longer side of the rectangle?
x + 4 = 190
4x = 190
2x + 8 = 190
16x = 190

Answer 1

Answer would be 2x + 8 = 190

Answer 2

Let

x-------> the length of the rectangle

y------> the width of the rectangle

we know that

the perimeter of the rectangle is equal to

`P=2x+2y`

`P=190\ in`

so

`2x+2y=190`------> equation A

`y=4\ in` ------> equation B

substitute equation B in equation A

`2x+2*4=190`

`2x+8=190`

therefore

the answer is

`2x+8=190`