SOLUTION: Need help please. Mary Left the hardware store at the same time as Shawna. They drove in opposite directions. Shawna drove at the speed of 65 mph. After five hours they were 450 mi

Algebra ->  Expressions-with-variables -> SOLUTION: Need help please. Mary Left the hardware store at the same time as Shawna. They drove in opposite directions. Shawna drove at the speed of 65 mph. After five hours they were 450 mi      Log On


   



Question 886862: Need help please. Mary Left the hardware store at the same time as Shawna. They drove in opposite directions. Shawna drove at the speed of 65 mph. After five hours they were 450 mi. apart. How fast did Mary drive?
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
We use rate times time = distance
Shawna's distance = 65 *5 = 325 miles
Mary's distance = 450 - 325 = 125 miles
now
5r = 125
r = 25
Mary drove 25 mph