Question

BUNA!!! calculeaza a*b:c+d ,stiind ca:
a=doimea catului nr.28 si 7
a*b=16
b:c=a
c*d=20

Answer 1

Răspuns:

Explicație pas cu pas:

a = ( 28 : 7) : 2

a = 4 : 2

a = 2

____________

a × b = 16

2 × b = 16

b = 16 : 2

b = 8

___________

b : c = a

8 : c = 2

c = 8 : 2

c = 4

______________

c × d = 20

4 × d = 20

d = 20 : 4

d = 5

______________

a × b : c + d = 2 × 8 : 4 + 5 = 16 : 4 + 5 = 4 + 5 = 9