Observe as razões iguais a/9 =b/27 =c/18 = c/36 calcule a,b,c e d sabendo que a+b-c=10.... Pergunta de ideia deFofa

December 2019 1 89 Report

Observe as razões iguais a/9 =b/27 =c/18 = c/36 calcule a,b,c e d sabendo que a+b-c=10

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exalunosp [ 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 ***

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