Question 1109342
Rachel’s dad was 30 when she was born now he is 3x older than Rachel. How old is Rachel’s dad? 
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Equations:
D = R + 30
D = 3R
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R + 30 = 3R
2R = 30
R = 15 yrs (Rachel's age now)
D = R + 30 = 45 yrs (Dad's age now)
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Cheers,
Stan H.
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