<PRE><B>Question 490639</B>
What we will be doing here is to set a right triangle, the legs will be 7 and x, and the hypotneus is x +1. This is the present distance between Mary and Juan.
x^2 + 49 = (x + 1)^2 
x^2 + 49 = x^2 + 2x + 1
48 = 2x
24 = x
7^2 + 24^2 = 25^2 to check.
49 + 576  = 625.
This does check.
Cleomenius.
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