asiababbie33
31.03.2020 •
Mathematics
Adrian's mean score for four tests is 64%. He wants to increase his mean to 68% after the fifth test. What does he need to score in the fifth test?
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Ответ:
He has to score 84 %
Step-by-step explanation:
64 + 64 + 64 + 64 = 256
5*68 = 340
340 - 256 = 84
(64 + 64 + 64 + 64 + 84)/ 5 = 68
Ответ:
2.4 gal of gas per hr
Step-by-step explanation: