6:х=3:7. 5:9 =15:х. 12:7=60:х пропорции

Question

6:х=3:7. 5:9 =15:х. 12:7=60:х пропорции

Comments

1)6/x=3/7 3x=7*6 3x=42 x=14 2)5/9=15/x 5x=135 x=27 3) 12/7=60/x 12x=420 x=35

Answer 1

6:x=3,6
x=6:3,6
x=1,(6)


5:9=15:x
0,(5)=2,700....

12:7=60:x
1.7142....=60:5.00...