We are given that there are 210 people representing 35% of a survey. To determine the total number of people "x" we will use the following relationship:
[tex]x\times\frac{35}{100}=210[/tex]Now we solve for "x" first by multiplying both sides by 100:
[tex]\begin{gathered} x\times35=210\times100 \\ x\times35=21000 \end{gathered}[/tex]Now we divide both sides by 35:
[tex]\begin{gathered} \frac{x\times35}{35}=\frac{21000}{35} \\ x=600 \end{gathered}[/tex]Therefore, there were 600 people in the survey.
