Answered

In a survey music preferences

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

Verified Answer :

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 = \(\frac{x}{100}\) 450
81 = \(\frac{x}{10}\)  45
81 = \(\frac{45x}{10}\)                 / 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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