After a three-tenths increase of her current hourly wage, a woman receives a new hourly wage of $20.18. How much was her hourly wage before the increase?

1 answer

Let her hourly wage before the increase be x.
The increase of three-tenths is equal to 3/10 * x = 0.3x.
The new hourly wage is x + 0.3x = $20.18.
Combining like terms, we get 1.3x = $20.18.
Dividing both sides by 1.3, we get x = $15.52.
Therefore, her hourly wage before the increase was $15.52. Answer: \boxed{15.52}.