Question

4÷x =32÷120



9x÷13=x÷143

Answer 1

Explicação passo-a-passo:

4/x =32/120

32.x=4.(120)

32.x=480

x=480/32

x= 15

_______________________

9x/13=x/143

13.x=9.143

13.x=1287

x=1287/13

x= 99