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18 July, 19:29

Daca 2/6 din lungimea unui dreptunghi este 180 m si 3/5 din latime este de 90 m, afla perimetrul unui alt dreptunghi avand lungimea egala cu diferenta dintre laturile primului dreptunghi, iar latimea de trei ori mai mica decat aceasta diferenta.

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  1. 18 July, 21:15
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    We look for the dimensions of the first rectangle:

    For the length:

    (2/6) L = 180

    L = (6/2) * (180)

    L = 540

    For the width:

    (3/5) W = 90

    W = (5/3) * (90)

    W = 150

    We look for the dimensions of the new rectangle:

    For the length:

    L ' = 540-150

    L ' = 390

    For the width:

    W ' = (1/3) * (390)

    W ' = 130

    Answer:

    The dimensions of the new rectangle are:

    L ' = 390

    W ' = 130
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