Question

Se stie ca a+b=45 si ac+bc=450.
Sa se calculeze:
a)a+b-c=;
b)a+b+2c=;
c)3a+3b+4c=
dau orice,nota,ma abonez orice dar repede​

Answer 1

Răspuns:

A+b-c=?

A+b=45

Ac+bc=450

C×(a+b)=c×45

C=10

A+b-c=45-10=35

Răspuns a+b-c=35

B)a+b+2c=

a+b=45

2c=10×10=100

100+45=145

Raspuns a+b+2c=145

C)3a+3b+4c=

A+b=45

45×3=135

4c=10×10×10×10=10.000

135+10.000=10.135

Răspuns 3a+3b+4c=10.135

Sper ca te am ajutat