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x/4-1=√100
(Edad de Cristina entre 4 menos uno)
Despejamos:
x/4-1=10
x/4=11
x=44
Comprobación:
44/4-1=√100
11-1=10
10=10
La cuarta parte = m/4
Resolvemos :
m/4 - 1 = √100
m/4 - 1 = 10
m/4 = 10 + 1
m/4 = 11
m = 11 (4)
m = 44
Solución : Cristina tiene = 44 años
VERIFICAMOS :
m/4 - 1 = √100
44/4 - 1 = 10
11 - 1 = 10
10 = 10
Listo!!!