fcourtney fcourtney

03-09-2017
Mathematics

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Agnes scored 87 on the first test 73 on the second test, 81 on the third test. supoise Agbes has one more test in the semester ajd wants to finish with a mean of at least 80. what does she need to get on her last test?

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daichaomaggie daichaomaggie

12-09-2017

87+73+81+x=4*80, find x

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