Question

encontre o valor de x nas proporções:
a) x/3=35/15
b) x/112=3/45
c) x/2=18/12
d)x/5=17/1
e)x/4=5/10
f) x/4=7/14
g)8/4=x/20​

Answer 1

Resposta:

Explicação passo-a-passo:

a) x/3=35/15

15x = 35 * 3

15x = 105

x = 105/15 = 7

b) x/112=3/45

45x = 112 * 3

45x = 336

x = 336/45 = 112/15 = 7,4666..

c) x/2=18/12

12x = 18 * 2

12x = 36

x = 36/12 = 3

d)x/5=17/1

x = 17 * 5 = 85

e)x/4=5/10

10x = 4 * 5

10x = 20

x = 20/10 = 2

f) x/4=7/14

14x = 4 * 7

14x = 28

x = 28/14 = 2

g)8/4=x/20​

4x = 8 * 20

4x = 160

x = 160/4

x = 40