Question

DACA a:2+b:2=20;  b:2+c:2=8;    a:2+c:2=26  calculati: a:b+c:b=

Answer 1

[tex]a:2+b:2=20 \\ (a+b):2=20=>a+b=40(1) \\ b:2+c:2=8 \\ (b+c):2=8=>b+c=16(2) \\ a:2+c:2=26 \\ (a+c):2=26=>a+c=52(3) \\ \\ (1)+(3)=>2a+b+c=92 \\ 2a+16=92 \\ 2a=76 \\ a=38 \\ b=40-38 \\ b=2 \\ a:b+c:b=(a+c):b \\ (a+c):b=52:2 \\ \boxed{(a+c):b=26}[/tex]