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linh

  • 3 years ago

Please help On a test, each correct answer scores 5 points, each incorrect answer scores -2 points and each question left unanswered scores 0 points. A) Suppose you answered all 20 questions on the test. What is the greatest number of questions you can answer incorrectly and still get a positive score? Explain your answer....

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  1. ParthKohli
    • 3 years ago
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    Are you on a test?

  2. ParthKohli
    • 3 years ago
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    Let the number of correctly answered questions be \(x\). Then the number of incorrectly answered questions is \(20 -x\). The number of points you get on this test is given by \(5x -2(20 - x)\). Can you solve the inequality \(5x - 2(20 - x) > 0\)?

  3. yunus
    • 3 years ago
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    sorry i did mistake. it is incorrect, my answer.

  4. ParthKohli
    • 3 years ago
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    \(7x - 40 > 0\). Now what are the values for \(x\)? When you get that, find the values for \(20 - x\). You'd get your answer

  5. linh
    • 3 years ago
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    No I am not on a test......it says on a test

  6. linh
    • 3 years ago
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    In*

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