Question

5) The height and length of a large rectangular painting,

in feet, are two consecutive integers, such that the
perimeter of the painting is 30ft. What are the
dimensions of the painting?
Let width=
Let length =
or
equation:
(think about the formula for
the perimeter of a rectangle)

Answer 1

Answer: 7 ft by 8 ft

Explanation:

Let the length be x and the height be x+1. Then, using the formula for the perimeter of a rectangle,

`2(x+x+1)=30\\\\2x+1=15\\\\2x=14\\\\x=7`

So, the dimensions are 7 ft by 8 ft