Question 607409
Malek drove for 2 hours then stopped for a break. 
After that, he drove for 3 hours at a speed 10 miles per hour (mph) more than the speed before the break. 
The total distance he drove was 280 miles. 
What was Malek’s speed before the break?
---------------------------------------------
Before break:
time = 2 hrs ; rate = x mph ; distance = 2x miles
---
After break:
time = 3 hrs ; rate = x+10 mph ; distance = 3x+30 miles
-------------------------------
Equation:
distance + distance = 280
2x + 3x+30 = 280
5x = 250
x = 50 mph (rate before the break)
======================================
cheers,
Stan H.
==============