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16 March, 01:58

A roller coaster train with 6 passenger cars and the front decoration has a mass of 3,500 kg. When the train has

the front decoration and only 4 passenger cars, it has a mass of 2,400 kg

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  1. 16 March, 02:06
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    Each passenger car: 550 kg

    Front decoration: 200 kg

    Step-by-step explanation:

    Mass of passenger car: p

    Mass of front decoration: d

    6p + d = 3500 (1)

    4p + d = 2400 (2)

    (1) - (2)

    2p = 1100

    p = 550 kg

    4 (550) + d = 2400

    d = 2400 - 2200

    d = 200 kg
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