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27 June, 12:54

A student has gotten the following grades on his tests. What is the minimum grade he must get on the last test in order to have an average of 81 ? 71 , 96 , 90 , 73 The minimum grade he must get on the last test in order to have an average of 81 is?. (Simplify your answer.)

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  1. 27 June, 12:59
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    In order to get an 81 average,

    the student has to get 81x5=405

    71+96+90+73+?=405

    330+?=405

    405-330=75

    he needs to get an 75
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