SOLUTION: dave is 2 years older than andrea who is 21 years younger than tony. tony is 4 years older than nora who is 7 years old. how old are dave, tony and andrea?
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Question 889729: dave is 2 years older than andrea who is 21 years younger than tony. tony is 4 years older than nora who is 7 years old. how old are dave, tony and andrea? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! dave is 2 years older than andrea who is 21 years younger than tony. tony is 4 years older than nora who is 7 years old. how old are dave, tony and andrea?
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Equations:
d = a + 2
a = t-21
t = 4+7 = 11 (tony's age now)
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a = t-21 = -10 (that doesn't make any sense)
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Cheers,
Stan H.
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