On a science test, students earn 5 points for each correct answer and lose 2 points for each incorrect answer. If there are 56 questions on the test, a student’s score is shown by the expression 5(56−w)−2w, where w represents the number of wrong answers. Pete says that the expression 7(40−w) could also be used. Is Pete correct? Why or why not? Show your work.

Question

08-03-2022
Mathematics

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On a science test, students earn 5 points for each correct answer and lose 2 points for each incorrect answer. If there are 56 questions on the test, a student’s score is shown by the expression 5(56−w)−2w, where w represents the number of wrong answers. Pete says that the expression 7(40−w) could also be used. Is Pete correct? Why or why not? Show your work.

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