SOLUTION: Teresa took a science test with 40 questions. If she missed 7 questions , and left 9 unanswered, what percent of the questions did she answer correctly. Can someone show me how

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Question 1111297: Teresa took a science test with 40 questions. If she missed 7 questions , and left 9 unanswered, what percent of the questions did she answer correctly.
Can someone show me how to do this step by step?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
40-7-9=24 answered
24/40=0.60=60%