Question

grandezas proporcionais.​

Answer 1

a) 7/8 = 14/x

7. x = 14 . 8

7x = 112

x = 16

b) x/3 = 27/9

x/3 = 3

x = 3 . 3

x = 9

c) 4/x = 16/32

4 . 32 = 16 . x

16x = 128

x = 8

d)1/3 = x/6

1 . 6 = 3 . x

3x = 6

x = 2

2)R=

I)10/x = 5/4

10 . 4 = 5 . x

5x = 40

x = 8

II) 25/3x = 10/12

25 . 12 = 10 . 3x

30x = 300

x = 10

Espero ter ajudado e

Bons estudos!