Answer:
[tex]\begin{gathered} a\text{. below on the step-by-step explanation.} \\ b\text{. percent}=\text{ 33.33\%} \\ c\text{.percent}=\text{ 86.1\%} \\ \text{Approximately 86\% of the students surveyed can swim.} \end{gathered}[/tex]Step-by-step explanation:
To complete the table, we need to add up the corresponding values at the rows and columns:
The percentage is represented by the following expression:
[tex]\text{Total}\cdot\frac{\text{percent}}{100}=\text{Equivalent number to the percent}[/tex]b. The total of students in the 7th grade are 180 students, and 60 of them cannot swim, then:
[tex]\begin{gathered} 180\cdot\frac{\text{percent}}{100}=60 \\ \text{Solve for percent:} \\ \text{percent}=\frac{60\cdot100}{180} \\ \text{percent}=\text{ 33.33\%} \end{gathered}[/tex]c. A total of 534 students surveyed, 460 can swim.
[tex]\begin{gathered} (C)\text{ 534}\cdot\frac{\text{percent}}{100}=460 \\ \text{percent}=\frac{460\cdot100}{534} \\ \text{percent}=\text{ 86.1\%} \\ \text{Approximately 86\% of the students surveyed can swim.} \end{gathered}[/tex]
