SOLUTION: Mary works due north of home. Her Husband Juan works due east. They leave for work at the same time. By the time Mary is 5 miles from home, the distance between them is one mile mo

Algebra ->  Test -> SOLUTION: Mary works due north of home. Her Husband Juan works due east. They leave for work at the same time. By the time Mary is 5 miles from home, the distance between them is one mile mo      Log On


   



Question 631601: Mary works due north of home. Her Husband Juan works due east. They leave for work at the same time. By the time Mary is 5 miles from home, the distance between them is one mile more than Juan's distance from home. How far from home is Juan?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Since Mary and her husband have to go at right angles to each other to their work place, at any given position,
Mary, husband and home form a right triangle.
So we can use Pythagoras theorem
Juan's distance from home be x
Mary 5 miles from home
the distance betwen them = (x+1)
x%5E2%2B5%5E2=+%28x%2B1%29%5E2
x%5E2%2B25+=+x%5E2%2B2x%2B1
2x+1=25
2x=24
/2
x=12 miles

Juan is 12 miles from home
m.ananth@hotmail.ca