SOLUTION: Sam's tractor is just as fast as Erin's. It takes Sam 1 hr more than it takes Erin to drive to town. If Sam is 45 miles from town and Erin is 30 miles from town, how long does it t
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-> SOLUTION: Sam's tractor is just as fast as Erin's. It takes Sam 1 hr more than it takes Erin to drive to town. If Sam is 45 miles from town and Erin is 30 miles from town, how long does it t
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Question 936212: Sam's tractor is just as fast as Erin's. It takes Sam 1 hr more than it takes Erin to drive to town. If Sam is 45 miles from town and Erin is 30 miles from town, how long does it take Erin to drive to town? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Sam's tractor is just as fast as Erin's. It takes Sam 1 hr more than it takes Erin to drive to town. If Sam is 45 miles from town and Erin is 30 miles from town, how long does it take Erin to drive to town?
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let x=Erin's travel time driving to town
x+1=Sam's travel time driving to town
speed=distance/travel time(same for both tractors)
..
45x=30x+30
15x=30
x=2
how long does it take Erin to drive to town? 2 hrs
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