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You have to use the distance formula:

R x T = D (Rate x Time = Distance)

Fill in the information you know:

45 x T = 8.1 (divide both sides by 45 to get T by itself)

T = 8.1/45

T = .18 hours

(which is 60 x .18 = 10.8minutes)

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6y ago
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Q: How long would it take in minutes to drive 8.1 miles at 45 mph?
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