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Mark made a business trip of 290 miles. He averaged 56 mph for the first part of the trip and 60 mph for the second part. If the trip took 5 hours, how long did he travel at each rate?

  • Algebra -

    time for first trip --- x hrs
    time for 2nd part of trip ---- (5-x)

    distance for 1st part = 56x miles
    distance for 2nd part = 60(5-x)

    so solve:
    56x + 60(x-5) = 290

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