Question

Determine o valor das icôgnita abaixo com o cálculo


A x/6 = 35/42
B 20/x= 5/7
C 48/54=x/9
D 48/60=12/x
E 60/40=3/x
F 8/x=72/81​

Answer 1

Resposta:

eu simplifiquei os multiplos e depois realizei o calculo ༼ つ ◕_◕ ༽つ

Explicação passo a passo:

x/6=35/42 => x/1=35/7 => x=35/7=5

20/x=5/7 => 4/x= 1/7 => x=4.7=28

48/54=x/9 => 48/6=x/1 => x=8

48/60=12/x => 4/60 = 1/x => x=60/4 => 15

60/40 = 3/x => 20/40 = 3/x => x=2.3= 6

8/x=72/81 => 1/x =9/81 = x= 81/9 =9

Answer 2

Vamos là.

A x/6 = 35/42

x = 6*35/42 = 6*35/6*7 = 35/7 = 5

B 20/x= 5/7

x = 7*20/5 = 7*4 = 28  

C 48/54=x/9

x = 9*48/54 = 48/6 = 8

D 48/60=12/x

x = 60*12/48 = 60/4 = 15  

E 60/40=3/x

x = 3*40/60 = 120/60 = 2  

F 8/x=72/81​

x = 81*8/72 = 9