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In a survey music preferences
, 81 out of 450 students said that they preferred country music. What percent of the students preferred country music.

Sagot :

SlowZasob
We can write all information we have as:

81 answers = x% of 450 students

So we just need to do a simple equation:

81 = x% * 450
81 = [tex]\frac{x}{100}[/tex] * 450
81 = [tex]\frac{x}{10}[/tex] * 45
81 = [tex]\frac{45x}{10}[/tex]                 / * 10 (both sides)
810 = 45x                    / ÷ 45 (both sides)
x = 18 [percent]

Answer: 18% of the students preferred country music.
bookgirl9632
81/450 is 0.18.
If you move the decimal place to the right two spots, you've got your percentage.
18% said they preferred country music.
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