Question

3 Știind că:
a=5x4:2+(27:3+10x3)
b=(48-23)x8:10
c=227-(6x8+170)


Calculeaza 5xa-b:2+c:3​

Answer 1

Răspuns:

a=5×4÷2+(27÷3+10×3)

a=20÷2+(9+30)

a=10+39

a=49

b=(48-23)×8÷10

b=25×8÷10

b=200÷10

b=20

c=227-(6×8+170)

c=227-(48+170)

c=227-218

c=9

5×a-b÷2+c÷3=

5×49-20÷2+9÷3

=245-10+3=235+3=238