Question 354722
Hi,
*Note: Average of all four test must be 89 to get an A.
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Let x be the score of the remaining test
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question reads
{{{((75 + 95 + 90 + x)/4) = 89}}}
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simplify and solve
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{{{(75 + 95 + 90 + x) = 4* 89}}}
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{{{(260 + x) = 356}}}
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{{{x = 96}}}
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check your answer
{{{((260+96)/4)= 89}}}