Question 721299: Miriam is four years older than ricardo. Ten years ago Miriam was 3 times as old as Ricardo was then. How old are they now? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Miriam is four years older than ricardo. Ten years ago Miriam was 3 times as old as Ricardo was then. How old are they now?
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Equations:
m = r + 4
m-10 = 3(r-10)
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Substitute for "m" and solve for "r":
r+4-10 = 3r-30
2r = 24
Ricardo = 12 yrs (age now)
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Solve for "m"
m = r + 4
Meriam = 12+4 = 16 yrs (age now)
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cheers,
Stan H.
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