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【OG20-P160-94题】
A doctor prescribed 18 cubic centimeters of a certain drug to a patient whose body weight was 120 pounds. If the typical dosage is 2 cubic centimeters per 15 pounds of body weight, by what percent was the prescribed dosage greater than the typical dosage?
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标准比例是2：15，所以120磅的标准是120/15=8，8*2=16
但是医生给的是18，所以（18-16）/16=0.125
emily666
医生给体重120磅的患者开了18立方厘米的某种药物。 如果典型剂量是每15磅体重2立方厘米，那么规定剂量比典型剂量大百分之几？
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2020-04-24 22:35:36
emily666
2/15=x/120, x=16
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2020-03-10 19:24:33
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