Question

Me ajude
COM CÁLCULO

Answer 1

Resposta:

Explicação passo a passo:

a) 7/9 = 14/x

7x = 14•9

7x = 126

x =126/7

x = 18

b) 3/11 = 9/x

3x = 11•9

3x = 99

x = 99/3

x = 33

c) 1/8 = x/32

8x = 32

x = 32/8

x = 4

d) x/7 = 21/49

49x = 21•7

49x = 147

x = 147/49

x = 3

e) 8/5 = 30/x

5x = 30 • 8

5x = 240

x = 240/5

x = 48

d) 3/x = 9/15

9x = 3• 15

9x = 45

x = 45/9

x = 5