<PRE><B>Question 986839</B>
 What is the cost of 4 pounds of butter if 2 kilograms costs $3.20? 
Use 1kg=2.20lb
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1 lb = 1/2.2 kg
4 lb = 4/2.2 kg = 1,82 kg
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x/1.82 kg = 3.20/2 kg
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x = $2.91 (price of 4 lbs of butter)
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Cheers,
Stan H.
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