sajanpatel823 sajanpatel823

04-09-2017
Mathematics

contestada

Hector is 22 years older than his sister.in 5 year,he will be 3 times as old as she will be.how old are hector and his sister today?

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kphung76127 kphung76127

04-09-2017

Hector is h. Sister is s.
h-22=s
h+5= 3(s+5)

Plug in s into the second equation
h+5=3(h-22+5)
h+5= 3(h-17)
h+5=3h-51
h+56=3h
56=2h
28=h

Final answer: Hector-28, Sister-6

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Аноним Аноним

04-09-2017

Hector=27
His sister=9

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