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Math Help - Finding The Equation

  1. #1
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    Finding The Equation

    The question: A jet flew from Tokyo to Bangkok, a distance of 4800 km. On the return trip, the speed was decreased by 200 km/h. If the difference in the times of the flights was 2 hours, what was the jet's speed from Bangkok to Tokyo?

    A similar previous question was answered easily enough, but that question gave the total time for the scenario. I'm not sure what to do with this one. If anyone can help, I'd appreciate it. I can get as far as putting the distance (4800) over the speed (x-200). If I had the other variable I'd be fine.
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  2. #2
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    Quote Originally Posted by Linds View Post
    The question: A jet flew from Tokyo to Bangkok, a distance of 4800 km. On the return trip, the speed was decreased by 200 km/h. If the difference in the times of the flights was 2 hours, what was the jet's speed from Bangkok to Tokyo?

    A similar previous question was answered easily enough, but that question gave the total time for the scenario. I'm not sure what to do with this one. If anyone can help, I'd appreciate it. I can get as far as putting the distance (4800) over the speed (x-200). If I had the other variable I'd be fine.
    v = \frac{4800}{t}

    v-200 = \frac{4800}{t+2}
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