To find the ratio of the number of students who did not get a B on the test to the total number of students, we start with the number of students who did not receive a B.
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Calculate the number of students who did not get a B:
- Total students = 25
- Students with a B = 12
- Students without a B = 25 - 12 = 13
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Express the ratio: The ratio of students who did not get a B to the total number of students is \( 13 : 25 \).
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Three different ways to write the ratio:
- As a fraction: \( \frac{13}{25} \)
- As a percentage: To convert it to a percentage, you can do \( \frac{13}{25} \times 100 = 52% \)
- As a simplified statement: You can write the ratio as "13 students out of 25 did not get a B."
So, the three different ways to express the ratio of students who did not get a B are:
- \( 13 : 25 \)
- \( \frac{13}{25} \)
- 52%