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Vaney
@Vaney
January 2020
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Qual o valor de x na figura ?
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exalunosp
Verified answer
( 9 + 5)/21 = 9/X
14/21 = 9/X
14X = 189
X = 189/14 =13.5 ***
21 - 13.5 = 7.5 ***
prova
9/5 = 13.5/7.5
9 * 7.5 = 5 * 13.5
67.5 = 67.5 confere
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Verified answer
( 9 + 5)/21 = 9/X14/21 = 9/X
14X = 189
X = 189/14 =13.5 ***
21 - 13.5 = 7.5 ***
prova
9/5 = 13.5/7.5
9 * 7.5 = 5 * 13.5
67.5 = 67.5 confere