Question 564645
Renee is twice as old as Dana. Four years ago, Renee was three times as old as Dana. How old are Renee and Dana now?
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Equations:
r = 2d
r-4 = 3(d-4)
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Substitute for "r" and solve for "d":
2d-4 = 3d-12
d = 8 (Dana's age now)
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Solve for "r":
r = 2d
r = 2*8 = 16 (Renee's age now)
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Cheers,
Stan H.