Question

4. A teacher can only make 3000 copies in a month. If a teacher-has-made 2700 copies so far this month, what percentage of her copies has she used?

Answer 1

In order to determine the percentage, let x as the percentage. Then, you can write:

`(x)/(100)\cdot3000=2700`

factor x/100 is the percentage in decimal form. The product of this factor and 3000 equals 2700.

Solve for x and simplify:

`x=(2700)/(3000)\cdot100=90`

Hence, teacher has used 90% of the copies.