A company that makes​ hair-care products had 6 comma 000 people try a new shampoo. Of the 6 comma 000 ​people, 48 had a mild allergic reaction. What percent of the people had a mild allergic​ reaction?

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Part 1
Write the percent proportion.
StartFraction 48 Over 6 comma 000 EndFraction
equalsStartFraction p Over nothing EndFraction

1 answer

To find the percent of people who had a mild allergic reaction, we can set up the percent proportion as follows:

486000=p100

Now, we can solve for p, which represents the percentage of people with a mild allergic reaction.

  1. Cross-multiply to solve for p: 48×100=6000×p 4800=6000p

  2. Divide both sides by 6000 to isolate p: p=48006000

  3. Simplify the fraction: p=4860=45=0.8

  4. Convert to a percentage by multiplying by 100: p=0.8×100=80

So, the percent of the people who had a mild allergic reaction is 0.8%.

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