Question

For what value of x is the area of the rectangle greater than the perimeter? The base of the perimeter is x+2

The height is 7

Answer 1

if we call the area A, then
`A=7(x+2)=7x+14`
if we call the perimeter P, then
`P=7*2+2(x+2)=2x+18`

`A>P`

`7x+14>2x+18`
subtracting 14 gives
`7x>2x+4`
subtracting 2x gives
`5x>4`
dividing by 5 gives
`x>(4)/(5)`
or
`x>0.8`