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5. Julia's test scores on the first four science tests were: 85, 77, 63, 90. Therewill be five tests. She needs an average of at least 80 in order to get a B on herreport card.Part B: What is the minimum score that Julia must earn on her final test in orderto get a B average?

5 Julias Test Scores On The First Four Science Tests Were 85 77 63 90 Therewill Be Five Tests She Needs An Average Of At Least 80 In Order To Get A B On Herrepo class=

Sagot :

Let the minimum score be x

(85 + 77 + 63 + 90 + x)/5 = 80

315 + x = 400

x = 400 - 315

= 85

Julia must get a minimum score of 85 to get a B average

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