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17 November, 11:29

Leroy uses 20 pounds of fertilizer to cover 4000 ft.² of his lawn and 50 pounds to cover 10,000 ft.². How much does he need to cover his entire yard which has an area of 26,400 ft.²

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  1. 17 November, 11:37
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    So 20:4000=1:200

    and 50:10000=1:200

    reverse

    1lb:200ft^2

    100ft^2=0.5lb

    needs to cover 26400ft^2

    100 times 264=26400 so

    0.5 lb times 264=132 lb needed for entire yard
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