To set up a proportion representing how long an employee must work to make $80 when they are paid $20 per hour, we can use the following relationship:
- The hourly rate is $20 per hour.
- We want to find out how many hours, represented by \(x\), are needed to earn $80.
The amount earned can be expressed as:
\[ \text{Earnings} = \text{Hourly Rate} \times \text{Hours Worked} \]
We can set up the equation based on the known values:
\[ 80 = 20 \times x \]
Now, to write this as a proportion using fractional notation, we can represent it as:
\[ \frac{20}{1} = \frac{80}{x} \]
This proportion indicates that for every $20 earned per hour, the total earnings of $80 corresponds to \(x\) hours worked.
Thus, the final proportion is:
\[ \frac{20}{1} = \frac{80}{x} \]