Multiple Choice
State the inputs and outputs of the following relation. Is it a function? {}
0. Functions
Introduction to Functions
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What is 15% of 20?
A
0.3
B
2
C
5
D
3
Verified step by step guidance1
Step 1: Understand the problem. You are tasked with finding 15% of 20. This means you need to calculate what fraction of 20 corresponds to 15%.
Step 2: Recall the formula for calculating a percentage of a number: \( \text{Percentage of a number} = \frac{\text{Percentage}}{100} \times \text{Number} \).
Step 3: Substitute the given values into the formula. Here, the percentage is 15, and the number is 20. So, the formula becomes \( \frac{15}{100} \times 20 \).
Step 4: Simplify the fraction \( \frac{15}{100} \) to \( 0.15 \), and then multiply it by 20. This gives \( 0.15 \times 20 \).
Step 5: Perform the multiplication to find the result. The final value will be the answer to the problem.
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