Final answer:
The student's question about converting fractions to decimals and percents can be answered by recognizing that 15/100 is equal to 0.15 (as a decimal) and 15% (as a percent). Therefore, the correct choices are B (0.15) and D (15%).
Step-by-step explanation:
In mathematics, specifically dealing with fractions, decimals, and percents, we need to recognize their equivalencies. The question asks to choose values equivalent to certain fractions (20/100, 15/100, and 3/10) as a fraction, decimal, and percent.
- 20/100 is equal to 0.20 or 20%.
- 15/100 is equal to 0.15 or 15%.
- 3/10 is equal to 0.30 or 30% (since 3/10 is the same as 30/100).
Converting a fraction to a decimal involves dividing the numerator by the denominator. To convert the decimal to a percent, we multiply by 100 or move the decimal point two places to the right. Therefore, the correct answers based on the provided options are:
- B. 0.15 (15/100 as a decimal)
- D. 15% (15/100 as percent)