The length of a rectangular garden is 3.5 less than twice the width. If the perimeter is 65 feet, what is the length of the rectangle?
1 Answer
The length of the rectangle is 20.5 feet.
Explanation:
Let's first translate the expression in the first statement into a mathematical equation:
"The length of a rectangular garden is 3.5 less than twice the width"
if we say length is represented by a variable
We know that the perimeter of any parallelogram (rectangles are included in this) can be written as:
Let's substitute the equation for l that we wrote earlier in the equation, and plug in the known perimeter while we're at it:
Now, we know the value of