SOLUTION: Ela is twice as old as her friend kath. kath is 7 years older than raquel. Ten years ago, ela was three times as old as raquel. How old is Kath now?
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Question 857453: Ela is twice as old as her friend kath. kath is 7 years older than raquel. Ten years ago, ela was three times as old as raquel. How old is Kath now? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Ela is twice as old as her friend kath. kath is 7 years older than raquel. Ten years ago, ela was three times as old as raquel. How old is Kath now?
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now:
x=requel's age
x+7=kath's age
2(x+7)=ela's age
..
10 yrs ago:
x-10=requel's age
x+7-10=x-3=kath's age
2(x+7)-10=2x+4=ela's age
2x+4=3(x-10)
2x+4=3x-30
x=34
x+7=41
How old is Kath now? 47
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