Question

1)daca a ori b = 45 iar c ori a =35 respectand ordinea efectuari operatiilor
a)a ori(b+c)+60=
b)a ori(b-c)ori3=
daca a ori b =36iar c ori a =12calculeaza
c)a ori (b+c)+72=
d)a ori(b-c)-6=
2)la un restaurant sunt 9 mese a cate 8 locuri si 7 mese a cate 10 locuri
cate persoane pot lua masa in acel restaurant?

Answer 1

axb=45
5x9=45
cxa=35
7x5=35
a=5
b=9
c=7
a)ax(b+c)+60=5x(9+7)+60=5x16+60=80+60=140
b)ax(b-c)x3=5x(9-7)x3=5x2x3=5x6=30