SOLUTION: Mary and Tiffany left their university for their homes at the same time. Mary's home is 285 miles from the university and Tiffany's home is 220 miles from the university. When Mary

Algebra ->  Human-and-algebraic-language -> SOLUTION: Mary and Tiffany left their university for their homes at the same time. Mary's home is 285 miles from the university and Tiffany's home is 220 miles from the university. When Mary      Log On


   



Question 31769: Mary and Tiffany left their university for their homes at the same time. Mary's home is 285 miles from the university and Tiffany's home is 220 miles from the university. When Mary came home she called Tiffany and she found that Tiffany arrived at her home at the same time as Mary got to her home. If Mary drove 57 mph, How fast did Tiffany drive in mph? Attach the unit mph to your answer
Answer by Paul(988) About Me  (Show Source):
You can put this solution on YOUR website!
Let Tiffany'sspeed be x:
285/57=220/x
285x=57(220)
285x=12540
x=44
Hence, Tiffany drove 44mph.
Paul.