Question 419680: Hi tutor, i really need help with this question. Im a really hard worker, and ive been pushing too do well in grade nine so i can get into pure classes in highschool. My biggest problem is math, and i really need help with this problem. Help would be greatly appreciated, please and thank-you. God bless. Question: Ryan is now three times as old as Sabrina. Eight years ago Ryan was five times that of Sabrina. Find there present ages. Can you please show how you got the answer, and provide a table as well. Thank - you so much(:
Answer by nerdybill(7384)   (Show Source):
You can put this solution on YOUR website! Ryan is now three times as old as Sabrina. Eight years ago Ryan was five times that of Sabrina. Find there present ages.
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Let x = Sabrina's age
then from "Ryan is now three times as old as Sabrina" we get
3x = Ryan's age
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Our formula comes from:
"Eight years ago Ryan was five times that of Sabrina"
3x-8 = 5(x-8)
solving for x:
3x-8 = 5x-40
-8 = 2x-40
32 = 2x
16 years old = x (Sabrina's age)
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Ryan's age:
3x = 3(16) = 48 years
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