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OpenStudy (anonymous):
Gabrielle's age is two times Mikhail's age. The sum of their ages is 45 . What is Mikhail's age?
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OpenStudy (anonymous):
g=gabe and m=mikhail g+m=45 2m=g substitute 2m for g in the first equation and solve for m
OpenStudy (anonymous):
3m=45 so m=15 then you substitute 15 for m in the second equation and solve for g
OpenStudy (anonymous):
2(15)=g so 30=g
OpenStudy (anonymous):
Gabe is 30 and Mikhail is 15
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