Question

afla jumatatea sumei numerelor a b c stiind ca a:10=b c x b=400 56:c=7

Answer 1

a:10=b
c*b=400
56:c=7
a=10b
7c=56
c=56:7
c=8
8*b=400
b=400:8
b=50
a=10b
a=50*10
a=500
a+b+c=?
500+50+8=558
Jumatatea=558:2
Jumatatea=279

Sper ca te-am ajutat!

Answer 2

c=56:7
c=8
b=400:8
b=50
a=10×50
a=500
500+50+8=550+8=558
558:2=279
succes