Answer:
68,000
Explanation:
The ratio of the number of people that would vote to the number of voters is constant. So, we can write the following equation:
[tex]\frac{17}{20}=\frac{x}{80,000}[/tex]Where x is the number of people that would vote in the city with 80,000 voters.
So, solving for x, we get:
[tex]\begin{gathered} \frac{17}{20}\cdot80,000=\frac{x}{80,000}\cdot80,000 \\ 68,000=x \end{gathered}[/tex]Then, 68,000 people would vote in the city.