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17 May, 01:59

Jared has a wooden board that is 11 ft long. He wants to cut it into 2 pieces so that the longer piece is 4 ft less than 4 times the length of the shorter piece. How long is each piece?

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  1. 17 May, 03:50
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    X+y=11

    x is longer than y

    x>y

    x is 4 less than 4 times y

    x=-4+4y

    sub back

    x+y=11

    -4+4y+y=11

    -4+5y=11

    add 4 to both sides

    5y=15

    divide both sides by 5

    y=3

    sub back

    x=-4+4y

    x=-4+4 (3)

    x=-4+12

    x=8

    the pieces are 8ft and 3ft
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