Respuesta :
Answer:
4% of people had a mild allergic reaction
Step-by-step explanation:
16 is 4% of 400
[tex]y = p\% \times x[/tex]
[tex]p\% = y \div x[/tex]
[tex]p\% = 16 \div 400[/tex]
[tex]p = 0.04[/tex]
Convert decimal to percentage
[tex]p\% = 0.04 \times 100 = 4\%[/tex]