Question

va rog ajutați.mă ,dau test din asta si nu am inteles absolut nomic de la profu'!​

Answer 1

Răspuns:

x/4=13/2

2x=13·4=>x=52:2=>x=26

5/6=15/x

5x=6·15=>x=90:5=>x=18

x/14=4/5

5x=14·4=>x=56:5=>x=11,2

24/x=6/5

6x=24·5=>x=120:6=>x=20

4/11=8/x

4x=8·11=>x=88:4=>x=22

7/8=x/40

8x=7·40=>x=280:8=>x=35

5/27=x/36

27x=36·5=>x=180:27=>x=6,(6)

9/x=10/7

10x=9·7=>x=63:10=>x=6,3