SOLUTION: Jessica and Lauren live on a straight road that runs east to west. Jessica lives 1 mile west of Lauren. One morning at 9:00 am, they both start running east. If Jessica runs 4.5

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Question 261148: Jessica and Lauren live on a straight road that runs east to west. Jessica lives 1 mile west of Lauren. One morning at 9:00 am, they both start running east. If Jessica runs 4.5 mph and Lauren runs 3.75 mph, at what time will Jessica catch up to Lauren?
Answer by palanisamy(496) About Me  (Show Source):
You can put this solution on YOUR website!
Let both meet t hours after 9am.
Distance travelled by Jessica in t hours = 4.5t
Distance travelled by Lauren in t hours = 3.75t
The difference is 4.5t-3.75t = 1 mile
0.75t = 1
t = 1/0.75 hours
t = 1 1/3 hours
t = 1h 20m