Glencoe Math: Course 1, Volume 1
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Glencoe Math: Course 1, Volume 1 View details
2. Percents and Fractions
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Exercise 13 Page 105

To write a fraction as a percent, find an equivalent fraction with a denominator of 100.

See solution.

Practice makes perfect

We are given the table that shows how many students prefer school uniforms and how many do not.

Prefer School Uniforms
No Yes
IIII IIII IIII I IIII
We can see that 16 students do not prefer school uniforms and 4 students do prefer school uniforms. First, let's find the total number of surveyed students. 16 + 4 = 20To find what percent of students do not prefer school uniforms, we will find the fraction of students who do not prefer school uniforms. Then, we will rewrite it as a percent. This fraction has the number of students who do not prefer school uniforms in the numerator and the total number of students in the denominator. 16/20 To write the fraction as a percent, we need to find an equivalent fraction with a denominator of 100. 16/20 = x/100 We can multiply 20 by 5 to get 100, so will also multiply 16 by 5 to get an equivalent fraction.
Now we can write the new fraction as a percent by looking at the numerator and adding a percent symbol. 80/100 = 80 % We found that 80 % of students do not prefer school uniforms. To find the percent of students who do prefer school uniforms, we can subtract 80 % form 100 %. 100 % - 80 % = 20 % We found that 80 % of students do not prefer school uniforms and 20 % do prefer them.