Răspunsuri

2014-06-15T00:05:09+03:00
Ma= (a+b)/2
ma=40

a+b=40*2
a+b=80

16+b=80
b=80-16
b=64
1 5 1
2014-06-15T00:05:13+03:00
Ma= (a+b)/2
ma=40

a+b=40*2
a+b=80

16+b=80
b=80-16
b=64
1 5 1
2014-06-15T07:15:56+03:00
Media aritmetica  =  \frac{suma}{2}  ⇒ 

⇒suma=media aritmetica x2 
=40x2
=80
80-16=64-(al doilea nr)