Question

Daca a:b=21,atunci: a)5a:b= b)(a+b):b= c) (a-b):b= d) (7a+3b):b=
Please dau coroană!

Answer 1

a) 5a:b=

=5×21=105

b) (a+b):b=

=a:b+1=

=21+1=22

c) (a-b):b=

=a:b-1=

=21-1=20

d) (7a+3b):b=

=7a:b+3=

=7×21+3=

=147+3=150