Question

Nas razões iguais a/9 = b/27 = c/18 = d/36, cal-
cule a, b, c e d, sabendo que
a + b – c= 10.

Answer 1

Resposta:

Explicação passo-a-passo:

[ a/9 = b/27 = c/18 ] = d/36

a + b - c  = 10

a/9 =  b/27 =  c/18

( a + b - c)/ ( 9 + 27 - 18 ) = 10/18

a/9 = 10/18

18a = 90

a = 90/18 = 5

b/27 = 10/18

18b = 270

b = 270/18 = 15

c/18 = 10/18

18c = 180

c = 180/18 = 10

c/18  = d/36

c = 10

10/18 = d/36

18d = 36 * 10

18d = 360

d = 360/18 =20