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Toroloco Toroloco
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4 years ago
To convert medication dosages from one quantity to another, the nurse must know how to use ratio and proportion. Which of the following is true about the ratio 2:4 :: 1:2.
 
  A) This represents two unequal ratios separated by a double colon.
  B) The numbers 4 and 2 are referred to as the extremes.
  C) The numbers 2 and 2 are referred to as the means.
  D) The proportion is referred to as a valuable relationship.
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bolbolbolbol
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A week ago
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ANSWER: D
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This is a valuable relationship. When written with the double colon, the first and last numbers are referred to as the extremes and the second and third (middle) numbers are the means. A true proportion consists of two equal ratios separated by an equals sign (=) or a double colon (Face with Rolling Eyes.
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