Ex 3 si 4 urgent !!!!!! Dau coaroana !!!!

Ex 3 Si 4 Urgent Dau Coaroana class=

Răspuns :

3. 6850:25=274
31452:12=2621
Ultimul nu imi iese.
4.
a×15=60000-4920
b=2360:35
b=62,10526315
a×15=60000-4920
a×15=55080
a=55080:15
a=3672
Catul:
3672:62,10526315=59,12542373