The local newspaper has letters to the editor from 40 people. If this number represents 4% of all of the newspaper's readers, how many readers does the newspaper have?

1000 readers

Step-by-step explanation:

40 people represent 4% of the total number of readers.

4% is 1/25 of 100%, therefore:

4% x 25 = 100%

So, if we multiply the number of people that represent 4% by 25, we will get the total number (100%).

40 x 25 = 1,000

The newspaper has 1000 total readers.

Alternatively, you could also divide 4% (40) by 4 which would give you 1%=10. Multiply this by 100 to get 100% which gives us: 100% = 1000.

Hope this helped!

10% of increase is the final answer! : )