What is 78% written as a decimal?
A0.78
B7.80
C0.078
D78.0
Answer & Solution
Correct answer: A. 0.78
1. Write 78% as a ratio with denominator 100: 78/100.
2. Change the fraction to a decimal by dividing the numerator by the denominator: 78 divided by 100.
3. This gives 0.78.
4. So 78% = 0.78.
_Source: OpenStax Prealgebra (CC BY 4.0), Ch 6 "Percents", section 6.1 Understand Percent_
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