Răspunsuri

2014-04-11T19:56:51+03:00
(a+b)/2=14,35=>  a+b=28,7
a/b=7,2=> a=7.2b
7.2b+b=28.7=> 8.2b=28.7=> b=3.5
a=7.2*3.5=25.2
a=25.2
b=3.5