Homework Help: math

Posted by Rmz on Wednesday, January 27, 2010 at 8:07pm.

Two helicopters leave Springfield, IL at the same time. One travles north at 27 miles per hour and the other travels west at 120 miles per hour. How far apart are they after 3 hrs?
(Hint: Use d=rt to find the distance traveled by each helicopter.)

I know that d=27*3, d=81 and
d=120*3= 360

these are the choices
f. 374 miles
g. 366 miles
h. 369 miles
j. 379 miles

math - Reiny, Wednesday, January 27, 2010 at 8:09pm
you have a right-angled triangle
Use Pythagoras to find the hypotenuse

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