b=44
a=16
c=20
Пошаговое объяснение:
a+b+c=80
a=b/2.75
c=(a+b)*1/3=(b/2.75+b)*1/3
b/2.75+b+(b/2.75+b)*1/3=80
3*(b/2.75+b+(b/2.75+b)*1/3)=80*3
3b/2.75+3b+b/2.75+b=240
4b/2.75+4b=240 /*2.75
2.75*(4b/2.75+4b)=240*2.75
4b+11b=660
15b=660
b=660:15
a=44/2.75=16
c=(a+b)*1/3=(44+16)*1/3=60:3=20
b=44
a=16
c=20
Пошаговое объяснение:
a+b+c=80
a=b/2.75
c=(a+b)*1/3=(b/2.75+b)*1/3
b/2.75+b+(b/2.75+b)*1/3=80
3*(b/2.75+b+(b/2.75+b)*1/3)=80*3
3b/2.75+3b+b/2.75+b=240
4b/2.75+4b=240 /*2.75
2.75*(4b/2.75+4b)=240*2.75
4b+11b=660
15b=660
b=660:15
b=44
a=44/2.75=16
c=(a+b)*1/3=(44+16)*1/3=60:3=20