Question

copie e complete B=12/42=×/7=4/×=×/84=30/×

Answer 1

b = 12/42 = x/7 = 4/y = z/84 = 30/n

12/42 = x/7
42 . x = 12 . 7
42x = 84
x = 84/42
x = 2

b = 12/42 = 2/7 = 4/y

2/7 = 4/y
2 . y = 7 . 4
2y = 28
y = 28/2
y = 14

b = 12/42 = 2/7 = 4/14 = z/84

4/14 = z/84
14 . z = 4 . 84
14z = 336
z = 336/14
z = 24

b = 12/42 = 2/7 = 4/14 = 24/84 = 30/n

24/84 = 30/n
24 . n = 84 . 30
24n = 2520
n = 2520/24
n = 105

b = 12/42 = 2/7 = 4/14 = 24/84 = 30/105

Answer 2

Resposta:  12 = 2  = 4 = 24 = 30

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