Średnia artmetyczna liczb x i y jest równa 3y/4. Ile równa sie x/y?
(x+y)/2=3y/4
2(x+y)=3y
2x+2y=3y
2x=y
x=½y
x/y=(½y)/2x
x/y=¼y/x
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(x+y)/2=3y/4
2(x+y)=3y
2x+2y=3y
2x=y
x=½y
x/y=(½y)/2x
x/y=¼y/x