SOLUTION: Carol drove to a resort 146 miles from her home. She averaged 54 mph for the first part of her trip and 46 mph for the second part. If her total driving time was 3 hours, how long

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Carol drove to a resort 146 miles from her home. She averaged 54 mph for the first part of her trip and 46 mph for the second part. If her total driving time was 3 hours, how long       Log On


   

Question 1050696: Carol drove to a resort 146 miles from her home. She averaged 54 mph for the first part of her trip and 46 mph for the second part. If her total driving time was 3 hours, how long did she travel at each rate?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
D = rt
54t + 46(3hr-t) = 146mi
8t = 146- 138
8t = 8
t = 1hr, time at 54mph, 2hr 3-1 at 46mph
Checking
54mi + 92mi = 146mi CHECKS!