Anonymous Anonymous

20-02-2015
Mathematics

Answered

Hello i'll attached them Okay

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Verified Answer :

apologiabiology apologiabiology

20-02-2015

so megan is four years younger than her aunt

m+4=a
or
m=a-4
the sum of their ages is at least 40
m+a>40
subsitute a-4 for m
a-4+a>40
combine like terms
2a-4>40
the answer is the third from the top

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