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anonymous

  • 5 years ago

A test consists of multiple choice questions worth 4 points and essay questions worth 8 points. The test has 22 questions that are worth a total of 100 points. Use a model to determine how many multiple choice questions are on the test.

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  1. anonymous
    • 5 years ago
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    The answer choices are: 14 16 19 22

  2. anonymous
    • 5 years ago
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    What I got was x = 10 and y = 12. But I guess thats wrong.

  3. dumbcow
    • 5 years ago
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    m+e = 22 4m + 8e = 100 use substitution e=22-m ->4m + 8(22-m) = 100 -4m = -76 m = 19

  4. anonymous
    • 5 years ago
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    simultaneous eqns , all it is

  5. anonymous
    • 5 years ago
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    so this is wrong? m + e = 22 4m + 8e = 100 m = 10, e = 12

  6. anonymous
    • 5 years ago
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    obviously its wrong

  7. anonymous
    • 5 years ago
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    :/

  8. anonymous
    • 5 years ago
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    sub them in, doesnt satisfy second eqn

  9. anonymous
    • 5 years ago
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    ah! I mean. m = 15, e = 5. I don't know where I got 10 and 12 from. ._.

  10. anonymous
    • 5 years ago
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    nvm doesn't work for first equation. JEEZ.

  11. anonymous
    • 5 years ago
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    Thanks for the help. I really do appreciate it. ;D

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