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20 September, 22:43

The Kelly family bought a new pet rabbit. They want to build an enclosure outside so it has lots of room to roam. They have 30 feet of leftover lumber to use. Find the length and width of the enclosure if the length is to be 4fteet longer than twice the width.

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  1. 21 September, 02:08
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    Assume that since this is a simple math problem and they only mentioned legnth and witdth,

    assume a perfect rectangle

    so assuming they use all the lumber

    30=perimiter

    perimiter=legnth around=legnth+legnth+with+width

    30=2legnth+2width

    undistribute

    30=2 (legnth+width)

    divide by 2

    15=legnth+width

    legnth is 4 more than 2width

    legnth=4+2width

    subsitute

    15=legnth+width

    15=4+2width+width

    subtract 4

    11=2width+width

    divide by 3

    11/3=width

    legnth=4+2width

    legnth=4+2 times (11/3)

    lefnth=4+22/3

    4=12/3

    legnth=12/3+22/3

    legnth=34/3 feet=11 and 1/3 foot

    width=11/3=3 and 2/3

    legnth=11 and 1/3 foot

    width=3 and 2/3 foot
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