객관식
Which of the following best describes the primary difference between a service firm and a manufacturer?
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0. Functions
Introduction to Functions
객관식
What is 20% of 400?
A
20
B
40
C
80
D
100
검증된 단계별 안내1
Identify the problem: You are tasked with finding 20% of 400. This involves calculating a percentage of a given number.
Recall the formula for calculating a percentage: \( \text{Percentage Value} = (\text{Percentage} / 100) \times \text{Total Value} \).
Substitute the given values into the formula: \( \text{Percentage Value} = (20 / 100) \times 400 \).
Simplify the fraction \( 20 / 100 \) to \( 0.2 \), and then multiply it by 400: \( 0.2 \times 400 \).
Perform the multiplication to find the result, which represents 20% of 400.
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