Asked by Emma Stewart
Tom sat two mental tests (each out of 10) his mean score for the test was 6 if tom scored 9 in the first test what must he have scored in the second
Answers
Answered by
John
(9 + x)/2 = 6
This represents the average of the tests equal to 6.
Multiply both sides by 2
9 + x = 12
Find x. Check to me sure the two tests have a mean of 6.
This represents the average of the tests equal to 6.
Multiply both sides by 2
9 + x = 12
Find x. Check to me sure the two tests have a mean of 6.
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