Question

Cine stie oricate va rooog!Urgeent!Dau coroana.

Answer 1

9) 17:8=2 rest 1 . Răspuns b)
10)y=6+2x

x/2+1,5(6+2x)=2 |*2
x+3(6+2x)=4
x+18+6x=4
7x=4-18
x=-14/7=-2

y=6-4=2
R: d)
12) x+x+10+x+20+x+30=360°
4x+60=360
4x=360-60
4x=300
x=300:4=75°