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OpenStudy (anonymous):
Two trains 420 miles apart are headed toward each other. Train A is traveling at 40 mi/hr and Train B at 30 mi/hr. How long will it take before they reach each other? Which equation represents the scenario above? a. 40t – 30t = 420 b. 420 = 30t c. 40t + 30t = 420 d. 420 = 40t
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OpenStudy (dangerousjesse):
What do you think?
OpenStudy (anonymous):
Typo, I mean no clue
OpenStudy (dangerousjesse):
Well, \(\textsf{t= time in hours}\), of course. So they want the total amount of hours times the miles per hour to add to a total of 420 miles for you to find out how long it takes for the trains to meet.
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