If 39 is 1% of a number, what is that number? How did you find your answer?

If you think of it logically, this problem is saying:

x ⋅ 1 % = 39

1 % is 1/100 so it's

x ⋅ 1/100 = 39

Divide both sides by 1/100 and you get

x = 39/1/100

Remember that when there is a fraction in the denominator we flip it and multiply that on top and bottom:

x = 39 ⋅ 100 (1/100) ⋅ 100

Therefore

x = 3900

You can check this by multiplying our answer by 1 %

3900 ⋅ 0.01 = 39