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A rectangular field measures 50 yards by 100 yards. If it takes one quart of fertilizer to fertilize a 15-foot-by-30 foot section, how many GALLONS of fertilizer will be needed to fertilize the entire fields?
(1 gallon = 4 quarts; 1 yard = 3 feet)

  • Math -

    area = 50x100 or 5000 square yards
    = 45000 square feet

    number of quarts needed = 45000/(15x30) = 100 quarts
    number of gallons = 100/4 = 25

    (tell your teacher to go metric, it is sooooo much easier)

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