Respuesta :
Step-by-step explanation:
basketball=
[tex] \frac{35}{100} \times 500 = 175 \: students[/tex]
baseball =
[tex] \frac{15}{100} \times 500 = 75[/tex]
soccer=
[tex] \frac{30}{100} \times 500 = 150[/tex]
football=
[tex]500 - 175 - 75 - 150 = 100[/tex]
the answer is 100
By adding the percentages of how many students prefer to watch each sport there is 20% left unaccounted for in the question, being the ‘rest’/football watching students which is 100/500 students. (% divided by 100, the decimal multiplied by the total number of students = number of students)