See a solution process below:
We can restate this problem as:
What is 80% of 20?
"Percent" or "%" means "out of 100" or "per 100", Therefore 80% can be written as
When dealing with percents the word "of" means "times" or "to multiply".
Finally, lets call the number of answers we are looking for "a".
Putting this altogether we can write this equation and solve for
The student answer 16 of the 20 questions correctly.
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