SOLUTION: if your friend lives 90 miles away and you need to be at their house in 120 minutes, how fast do you need to drive up there in miles per hour?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: if your friend lives 90 miles away and you need to be at their house in 120 minutes, how fast do you need to drive up there in miles per hour?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 737488: if your friend lives 90 miles away and you need to be at their house in 120 minutes, how fast do you need to drive up there in miles per hour?
Found 2 solutions by josmiceli, Alan3354:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
In terms of units:
( miles / minutes ) x ( minutes / hour ) = miles / hour
+%28+90+%2F+120+%29%2A%28+60+%2F+1+%29+=+45+ mi/hr

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
if your friend lives 90 miles away and you need to be at their house in 120 minutes, how fast do you need to drive up there in miles per hour?
------------
120 mins = 2 hours
---
d = r*t
t = d/r