Question

решите пропорцию:х:5=7:1/2 х:6=1/3:8

Answer 1

x:5=7:1/2
1/2*x=5*7
1/2x=35
x=35:1/2
x=35*2
x=70

x:6=1/3:8
x*8=6*1/3
8x=6/3
8x=2
x=2:8
x=1:4
x=0,25