Final answer:
Molly got a 65% on the math quiz, and there were 20 questions. To find out how many questions she got right, we can set up a proportion and solve for x. The number of questions she got right is 13.
Step-by-step explanation:
To find out how many questions Molly got right, we can first calculate the percentage of questions she got right. Molly got a 65% on the quiz, which means she answered 65% of the questions correctly. To find out how many questions that corresponds to, we can set up a proportion. Let x represent the number of questions Molly got right:
(x / 20) = 65 / 100
Cross-multiplying, we get:
100x = 65 * 20
Simplifying, we get:
100x = 1,300
Dividing both sides by 100, we get:
x = 13
Therefore, Molly got 13 questions right.