Question

The area of a rectangle with width x and length 7x is 7x2. What does the coefficient 7 mean in terms of the problem?

Answer 1

7 is number of times length is longer than the width, x.

Explanation:

The area of a rectangle with width x and length 7x is
`7x^2`.

The area of the rectangle is
`length* width`

Here width is x and the length is 7x. This means the length is 7 times width.

And the area is a
`7x^2` means 7 is number of times length is longer than the width, x.

Like, if x = 3

Then
`7x=7*3=21`