a nerds box is 3x/10 width

and 3 1/2 cm in length. simplify the area

3x/10 * 7/2 = 21x/20

does x=1? that always throws me off

who knows? x is a variable. Use whatever value is required in a specific calculation.

To simplify the area of a nerds box that has a width of 3x/10 and a length of 3 1/2 cm, we need to multiply the width and the length together.

First, let's convert the length to a fraction.

3 1/2 = (3 * 2 + 1)/2 = 7/2

Now, we can compute the area of the box by multiplying the width and the length:

Area = (3x/10) * (7/2)

To simplify this expression, we can multiply the numerators together and the denominators together separately:

Area = (3 * 7 * x)/(10 * 2)

Simplifying further:

Area = (21x)/(20)

Therefore, the simplified area of the nerds box is (21x)/(20).