7th Grade Math

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Carlos and maria drove a total of 258 miles in 5 hours. carlos drove the first part of the trip and averaged 50 miles per hour. maria drove the remainder of the trip and averaged 55 miles per hour. for approximately how many hours did maria drive?

  • 7th Grade Math -

    let Carlos' time be t hrs
    then Maria's time is 5-t hrs

    solve for t

    50t + 55(5-t) = 258

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