Question

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The width of a rectangle is 1 units less than the length. The area of the rectangle is 20 units. What is the width, in units, of the rectangle?

Answer 1

Answer:

4

Step-by-step explanation:

Area is found by multiplying the length and width.

Let's think about the factors of 20.

The only ones are

4x5 and 1x20

There's only one set of lengths and widths where the width is 1 less than the length, 4 and 5.

Remember, the width is always the smaller number. So, the width must be 4.