Question 289102
Missing ages. Molly’s age is twice Anita’s. If the sum of
the squares of their ages is 80, then what are their ages? 
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Equations:
m = 2a
m^2 + a^2 = 80
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Substitute for "m" and solve for "a":
(2a)^2 + a^2 = 80
4a^2 + a^2 = 80
5a^2 = 80
a^2 = 16
a = 4 (Anita's age)
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Since m = 2a, m = 8 (Molly's age)
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Cheers,
Stan H.
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