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A small, medium, and large sized chicken were weighing themselves on a scale. The large and medium chicken steppedon the scale together with a total weight of 30 lbs. The large and small chicken had a total weight of 25 lbs. The small and medium chickens had a total weight of 13 lbs. What will the scale read when all three step on together? How much does each chicken weigh? Explain how you found your answer.

  • math - ,

    L+M=30
    L+S=25
    S+M=13

    These are big chickens. Why didn't they weigh one at a time? I know, they were chicken.

    subtract the second equation from the first:
    M-S=5
    now add the third equation
    2M=18
    M=9
    you take it from there

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