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problemele 71 si 73 va rog rapid dau coroana

Problemele 71 Si 73 Va Rog Rapid Dau Coroana class=

Răspuns :

73. a+b+c=546
a=3b
c=a-b
3b+b+(a-b)=546
4b+(a-b)=546/:4
a-b=136,5
3b+b+136,5=546/-136,5
4b=409,5/:4
b=102,375
3x102.375=307.125
a=307.125
b=102.375
c=136,5
307.125+102.375+136.5=546