Erin got 10 items correctly.
Given:
total number of items in the test = 20
Number of items answered correctly = [tex]\frac{2}{4}[/tex] of the total items
To determine how many test items Erin answered correctly, we would apply the knowledge of proportion and fractions by:
Thus:
Number of items Erin answered correctly = [tex]\frac{2}{4} $ of $ 20[/tex]
Solve as fractions
[tex]\frac{2}{4} \times 20\\\frac{1}{2} \times 20\\= 10[/tex]
Erin got 10 items correctly in the test.
Learn more here:
https://brainly.com/question/892979
