SOLUTION: After five English tests, Michael's mean mark was 65.In the next three English tests he scored 70,75 and 80. Find Michael's mean mark for all of these English tests.
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Question 634800: After five English tests, Michael's mean mark was 65.In the next three English tests he scored 70,75 and 80. Find Michael's mean mark for all of these English tests.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
After five English tests, Michael's mean mark was 65.
In the next three English tests he scored 70,75 and 80.
Find Michael's mean mark for all of these English tests.
:
He took a total of 8 tests,
av =
av =
av =
av = 68.75%
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