Homework Help: math

Posted by Mandy on Sunday, December 11, 2011 at 11:30am.

Fran works due north of home. Her husband Alan works due east. By the time Fran is 7 miles from home, the distance between them is one mile more than Alan's distance from home. How far from home is Alan? Miles

Please and thank you in Advanced!!!

math - Reiny, Sunday, December 11, 2011 at 1:06pm
Did you mean "walks" instead of "works" ?
Not that it matters much, I get a right-angled triangle with sides 7, x, and x+1
(x+1)^2 = x^2 + 7^2
x^2 + 2x + 1 = x^2 + 49
2x = 48
x = 24

check: 25^2 = 625
24^2+7^2 = 576+49 = 625
math - Mandy, Sunday, December 11, 2011 at 1:12pm
Its works. :)

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