If 25a+25b=115, then what is the average of a and b?
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Answered by
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25a+25b=115
a+b=23/5
a+b/2=23/10=2.3
Answered by
0
25 (a+b)=115
a+b=4.6
Average
a+b÷2=4.6/2
=2.3
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