A+b+c=700
a=2c=b
2c+2c+c=700
5c=700 / :5
c=140
a+b+140=700
a+b=700-140
a+b=560
2a=560 /:2
a=280=b
Raspuns: a=280, b=280, c=140
asa se rezolva! e problema de cls a 4-a
eu sunt a 7-a. asa as fii rezolvat-o eu acum 3 ani
Esti sigura ca ai scris cerinta corect?
deci a+b+c=700
a=2c
b=2c
2c+2c+c=700=>5c=700/5=>c=140
a+b+140=700
a+b=700-140=>a+b=560
Incepe scoala ah? Teme de vacanta? Fa-ti-le singura! Daca iti zicem noi cum o sa mai ajungi si tu cineva in lumea asta de *****.
Stim ca a+b+c=700, a=2xc, b=2xc, => 2xc+2xc+c=700 => 5c=700 => c=140 => a=280, b=280 qed
A+b+c=700
a=2c
b=2c
deci 2c+2c+c=700
5c=700 rezulta ca c=140
a=2c adica 2 x 140 = 280
si b la fel 280
A+b+c=700
a=2c
b=2c
2c+2c+c=700
5c=700
c=700:5
c=140
a=2*140=280
b=2*140=280
280+280+140= 700