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22-03-2018
Mathematics

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Jon's test grades are 67, 75 , 73 and 69. What does he need to make on his next test to have a 73 average?

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22-03-2018

it's 81.
simple calculate it by:
(67+75+73+69+x)/5=73
then 73*5-(67+75+73+69)=x
where x here is the grade needed to reach an av. of 73. 5 is the number of tests.

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