Asked by abby

alma is 6 years older than her sister ana. four years ago, ana's age is more than half of alma's age. what are their present ages
Answered by bobpursley
aLma=ana+6
1/2 (alma-4)<ana-4
1/2 (ana+6 -4)<ana-4
ana+2 < 2ana-8
ana>10
alma>16

check that.
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