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Mathematics, 02.09.2019 18:30 hey840

The score of tim's first four math test was 82%, 90%, 78%, and 100%. if tim wants to have a test average of 90%, what must the average of his next two tests be?

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The score of tim's first four math test was 82%, 90%, 78%, and 100%. if tim wants to have a test ave...
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