SOLUTION: To create a model of the Eustachian tube of the human ear, an audiologist used the scale 1.5cm = 0.6mm. If the diameter of the Eustachian tube is 1.8mm, what is the diameter of the

Algebra ->  Algebra  -> Proportions -> SOLUTION: To create a model of the Eustachian tube of the human ear, an audiologist used the scale 1.5cm = 0.6mm. If the diameter of the Eustachian tube is 1.8mm, what is the diameter of the      Log On

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Question 172647: To create a model of the Eustachian tube of the human ear, an audiologist used the scale 1.5cm = 0.6mm. If the diameter of the Eustachian tube is 1.8mm, what is the diameter of the model?
Answer by Alan3354(21584) About Me  (Show Source):
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To create a model of the Eustachian tube of the human ear, an audiologist used the scale 1.5cm = 0.6mm. If the diameter of the Eustachian tube is 1.8mm, what is the diameter of the model?
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The scale is 0.6mm/15mm (1.5 cm = 15 mm)
0.6/15 = 1/25 scale. The model is 1/25 the size of actual
1.8mm/25 = 0.072 mm, or 72 microns.