Class size m average 0.82 n class n average 0.78. if the average for combined classes is 80%, what is relationship between m and n?

The relation between m and n is ,  m = n      

Step-by-step explanation:

Given as :

The average for n class  = 0.82 = 82%

The average for m class  = 0.78 = 78%

The average for ( m + n ) class  = 80%

So , = 82%

And = 78%

And , = 80%

So , 0.82×n + 0.78×m = 0.80× (m+n)

Or,  0.82×n - 0.80×n = 0.80×m -   0.78×m

Or,   0.02×n              =  0.02×m

Or,   =  

∴       = 1

I.e     m  =  n

Hence The relation between m and n is ,  m = n      Answer

answer: the value of x is 7cm

step-by-step explanation: