SOLUTION: Eight years ago, Cindy was twice as old as Sally. Right now, Cindy is five years older than Sally. Find their current ages.

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Question 924211: Eight years ago, Cindy was twice as old as Sally. Right now, Cindy is five years older than Sally. Find their current ages.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Eight years ago, Cindy was twice as old as Sally. Right now, Cindy is five years older than Sally. Find their current ages.
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Equations:
c = s + 5
c-8 = 2(s-8)
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Substitute and solve for "c"::
s+5-8 = 2s - 16
s-3 = 2s-16
s = 13 yrs (Sally's age now)
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c = s + 5 = 18 yrs (Cindy's age now)
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Cheers,
Stan H.
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