smile4meehpleaz smile4meehpleaz

27-02-2017
Mathematics

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The average of three test scores if the first two scores are 79 and 93; s = the third test score

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Oisincarolan12 Oisincarolan12

27-02-2017

79 + 93 + s = 172 + s then... 172 ÷ 3 and s ÷ 3 to get 57.3333 etc. + 1/s I think

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