SOLUTION: Molly's age is twice Anitas. If the sum of the squares of thier ages is 80, then what are their ages?

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Question 278577: Molly's age is twice Anitas. If the sum of the squares of thier ages is 80, then what are their ages?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Molly's age is twice Anitas.
If the sum of the squares of their ages is 80, then what are their ages?
:
m = 2a
:
m^2 + a^2 = 80
:
Replace m with 2a
(2a)^2 + a^2 = 80
:
4a^2 + a^2 = 80
:
5a^2 = 80
:
a^2 = 80%2F5
a^2 = 16
a = 4
then
m = 8
:
:
Check 4^2 + 8^2 = 80