Question

jms ajudem aí pfvr! o​

Answer 1

Explicação passo-a-passo:

3)

a)

x            5

24         4

x . 4 = 24 . 5

4x = 120

x = 120/4

x = 30

b)

x            6

20         5

x . 5 = 20 . 6

5x = 120

x = 120/5

x = 24

c)

5            50

x            60

50 . x = 5 . 60

50x = 300

x = 300/50

x = 6

d)

42          7

x            4

7 . x = 42 . 4

7x = 168

x = 168/7

x = 24

4)

x/1 = y/4 = 20/1+4

x/1 = y/4 = 20/5

x / 1 = 20/5

5x = 1 . 20

5x = 20

x = 4

y /4 = 20/5

5y = 4 . 20

5y = 80

y = 16

5)

x/3 = y/4 = z/2 = 36/3+4+2

x/3 = y/4 = z/2 = 36/9

x / 3 = 36/9

9x = 3 . 36

9x = 108

x = 12

y /4 = 36/9

9y = 4 . 36

9y = 144

y = 16

z / 2 = 36/9

9z = 2 . 36

9z = 72

z = 8