SOLUTION: Dawn drove 420 miles in 6 hours on a rural interstate highway. If she maintains the same speed, how far can she go in 7.5 hours?

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Question 1073510: Dawn drove 420 miles in 6 hours on a rural interstate highway. If she maintains the same speed, how far can she go in 7.5 hours?
Answer by ikleyn(52746) About Me  (Show Source):
You can put this solution on YOUR website!
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Can you calculate the speed based on given data ?