Question

determinar o valor do termo desconhecido nas proporções:


C) 1/× =3/9
D)z/100=216/600
E)y/2=15/10
f)5/y=3/6
g)45/9=15/×
h)7/8=14/a

!!​

Answer 1

Resposta:

C) 1/× =3/9

3x=9

x=3

D)z/100=216/600

600z=21600

z=21600/600

z=36

E)y/2=15/10

10y=30

y=3

f)5/y=3/6

3y=30

y=10

g)45/9=15/×

45x= 135

x=3

h)7/8=14/a

7a=112

a=16