Question

A company that makes​ hair-care products had 9,000 people try a new shampoo. Of the 9,000 ​people, 36 had a mild allergic reaction. What percent of the people had a mild allergic​ reaction?

Answer 1

Answer: 0.4%

Explanation:

Total number of people 9000, divide the number of allergic reactions 36 by 9000.

36/9000=0.004

Now multiply 0.004 x 100 to reveal percent allergic reaction

0.004 x 100 = 0.4%

0.4% had allergic reactions