Question

The thickness of one sheet of paper is 〖8 × 10〗^(-3)

Work out the thickness of 250 sheets of paper.

Answer 1

1/2048 or 4.8828125*10^(-4)

Explanation:

First, figure out the thickness of 1 sheet of paper in number format:

[(8*10)]^(-3)=(80)^(-3) or (1/(80)^(3))=1/512000

Now, multiply 1/512000 by 250 to find the thickness of 250 sheets of paper:

250(1/512000)=1/2048

In scientific notation, this is written as 4.8828125*10^(-4).