write the class mark of 90 -110
Answers
Answered by
15
= 90+110/2
=200/2
=100
so 100 is the class mark
=200/2
=100
so 100 is the class mark
Answered by
9
90 + 110= 200
200÷ 2= is the class maek
200÷ 2= is the class maek
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