SOLUTION: write a system of equations for the following problem: ten years from now, Ava will be twice as old as bostyn. five years ago, Ava was three times as old as bostyn. what are the pr

Question 1065571: write a system of equations for the following problem: ten years from now, Ava will be twice as old as bostyn. five years ago, Ava was three times as old as bostyn. what are the presents age of each girl? then solve using substitution or elimination.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
write a system of equations for the following problem: ten years from now, Ava will be twice as old as bostyn. five years ago, Ava was three times as old as bostyn. what are the presents age of each girl? then solve using substitution or elimination.
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A + 10 = 2(B+10)
A - 5 = 3(B-5)
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Modify
A - 2B = 10
A - 3B = -10
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Subtract and solve for "B":
B = 20 yrs Bostyn's age now
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A - 2B = 10
A - 40 = 10
A = 50 yrs (Ava's age now)
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Cheers,
Stan H.
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