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9 February, 05:38

a student achieved the following grades on his tests : 87,95,76 and 88 percent. he wants 85 percent or better overall. what grade should he must get in his last test to achieve that average

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  1. 9 February, 05:54
    0
    Step-by-step explanation:

    87+95+76+88+x/5=85

    346+x=85x5

    x=425-346

    x=79
  2. 9 February, 05:56
    0
    Atleast 79

    Step-by-step explanation:

    Average " 85

    If 5 tests,

    Sum " 85*5

    Sum " 425

    Let the fifth test score be X

    X + 87 + 95 + 76 + 88 " 425

    X "425 - 346

    X"79
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