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Math Help - Story Problems-I'm dying here!

  1. #1
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    Story Problems-I'm dying here!

    Help please!

    1. X shares pay 8% dividend and Y shares pay 9%. Reiko has invested $200,000 more on X shares than she has on Y shares. Her total earnings for the year for the two investments is $271,000. How much did she invest in X shares?

    2. Carlos cycles for 2 hours at a fast speed, then cycles for 3 more hours at a speed 10 kph slower. If the entire distance travelled is 90 km, find Carlos' speed for the first two hours of travel.

    Thank you soooo much!!!
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  2. #2
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    Quote Originally Posted by Biscuithead View Post

    1. X shares pay 8% dividend and Y shares pay 9%. Reiko has invested $200,000 more on X shares than she has on Y shares. Her total earnings for the year for the two investments is $271,000. How much did she invest in X shares?
    try

    X = Y +200,000

    and

    1.08\times X + 1.09\times Y = 271,000

    solve...
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  3. #3
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    Smile

    So x=$424,424! Thanks so much, still trying to recover from summer math deprivation.
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