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Two times Antonio’s age plus three times Sarah’s age equals 34. Sarah’s age is also five times Antonios age. How old is Sarah?

 Mar 28, 2020

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 #1
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Let Antonio's age be A and Sarah's be S.  \(2A + 3S = 34 , S=5A\) .  Substituting 5A for S in the first equation we get 17A = 34 and A =2 . Then Sarah's age is 5 times that so it is 10. 

 Mar 28, 2020
 #1
avatar+22 
+1
Best Answer

Let Antonio's age be A and Sarah's be S.  \(2A + 3S = 34 , S=5A\) .  Substituting 5A for S in the first equation we get 17A = 34 and A =2 . Then Sarah's age is 5 times that so it is 10. 

MathIsCool Mar 28, 2020

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