SOLUTION: Pam and Sue left their house at the same time and headed in opposite directions. After 4 hours, they were 440 miles apart. If Pam drove 10 mph faster than Sue, how fast did Sue dri
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: Pam and Sue left their house at the same time and headed in opposite directions. After 4 hours, they were 440 miles apart. If Pam drove 10 mph faster than Sue, how fast did Sue dri
Log On
Question 973898: Pam and Sue left their house at the same time and headed in opposite directions. After 4 hours, they were 440 miles apart. If Pam drove 10 mph faster than Sue, how fast did Sue drive? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Pam and Sue left their house at the same time and headed in opposite directions. After 4 hours, they were 440 miles apart. If Pam drove 10 mph faster than Sue, how fast did Sue drive?
--------------------
Sue rate:: x
Pam rate:: x+10
----
Combined rate:: 2x+10
-----
Equation:
time*rate = distance
4 * (2x+10) = 440
8x + 40 = 440
8x = 400
x = 50 mph (Sue's rate)
x+10 = 60 mph (Pam's rate)
--------------
Cheers,
Stan H.
-------------------
(