
Chaoyun L. answered 11/04/15
Tutor
1
(1)
Master of Math with concentration in Statistics
let the mother be x years old.
8:3=x:12
8/3=x/12
3x=8*12
x=8*12/3=32
Juno P.
asked 11/04/15Chaoyun L. answered 11/04/15
Master of Math with concentration in Statistics
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