Question 316844
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The *[tex \Large \frac{3}{5}d] part is right since (fractional part) OF (something) translates to multiply the fraction times the something.


The problem is with the rest of it.  We know that we have to subtract <i>something</i> from *[tex \Large \frac{3}{5}d], but exactly how much?  "2 kilometers less..." gives us a clue, but NOT the answer.


That is because the distance, *[tex \Large d], does not have any units of measure associated with it.  If the unit of measure for *[tex \Large d] is kilometers, then the answer is simple and direct:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{3}{5}d\ -\ 2]


But if the unit of measure for *[tex \Large d] is something different than kilometers, then you must convert 2 kilometers to an appropriate amount *[tex \Large x] in that other unit of measure.  Having done that you can say:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{3}{5}d\ -\ x]


In the highly improbable case that *[tex \Large d] is measured in units equal to *[tex \Large \frac{2}{15}\text{ km}], then


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{3}{5}d\ -\ 15]


is the correct answer -- but ONLY in that case.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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