Answer: look at the step by step i set out for you and you'll get you're answer;)
Explanation:
To solve this problem using fractional notation, we can set up an equation using the given information.
Let's represent the unknown number of hours the employee must work as "X".
The employee earns $20 per hour, so the amount of money earned in X hours can be represented as 20X.
We want to find the number of hours the employee needs to work to make $80. This can be represented as 80.
Therefore, the equation representing this problem is:
20X = 80
To solve for X, we need to isolate X on one side of the equation. We can do this by dividing both sides of the equation by 20:
(20X)/20 = 80/20
Simplifying, we get:
X = 4
So, the employee must work 4 hours to make $80.