Question

a company that makes​ hair-care products had 7,000 people try a new shampoo. Of the 7,000 ​people, 21 had a mild allergic reaction. What percent of the people had a mild allergic​ reaction?

Answer 1

Answer:

Answer: Percent of people who had a mild allergic is 0.6%.

Step-by-step explanation:

Since we have given that

Total number of people try a new shampoo = 7000

Number of people had a mild allergic reaction = 42

We need to find the "Percentage of people had a mild allergic":

Percentage of people had a mild allergic is given by

 \begin{gathered}\frac{\text{ Total number of people who had a mild allergic}}{\text{ Total number of people}}\times 100\\\\=\frac{42}{7000}\times 100\\\\=\frac{42}{70}\\\\=0.6\%\end{gathered} Total number of people Total number of people who had a mild allergic×100=700042×100=7042=0.6%

Hence, Percent of people who had a mild allergic is 0.6%.

Answer 2

Step-by-step explanation:

percentage of people had a mild allergic reaction

21x100÷7000= 0.3%