Question

determine os valores das incógnitas em cada item: ​

Answer 1

Explicação passo-a-passo:

a) z/5 = 4,55/x = 5,2/4 = 3,9/y

logo:

5,2/4 = 4,55/x

5,2x = 4 . 4,55

x = 18,2/5,2

x = 3,5

5,2/4 = 3,9/y

5,2.y = 3,9 . 4

5,2 y = 15,6

y = 15,6/5,2

y = 3

5,2/4 = z/5

4z = 5,2 . 5

4z = 26

z = 26/4

z = 6,5

b) x/5 = y/2 = z/4 = 4,5/3 = 9/w

4,5/3 = x/5

1,5 = x/5

x = 5 . 1.5

x = 7,5

1,5 = y/2

y = 2 . 1,5

y = 3

1,5 = z/4

z = 4 . 1,5

z = 6

1,5 = 9/w

1,5.w = 9

w = 9/1,5

w = 6