You are driving a car from point A. to point B.

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imgrumpydamit
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$1.00 You are driving a car from point A. to point B.

From Mathematics: General-Mathematics
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Due on Mar. 09, 2009
Asked on Mar 06, 2009 at 6:05:37PM

Q:
You are driving a car from point A. to point B. which is exactly one mile. The first half mile you average 30 M.P.H., how fast do you have to drive the second half mile in order to average exactly 60 M.P.H. for the entire mile

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leit2700
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Posted on Mar 06, 2009 at 6:09:39PM

A:
Preview: ... = (speed #1 + speed #2)/ 2 ...

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alephzero314
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Posted on Mar 06, 2009 at 6:17:59PM

A:
Preview: ... For the first half-mile: Distance = Speed * Time 1/2 = 30 * Time Time = (1/60) hours Average speed = Total ...

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sudipta

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Posted on Mar 06, 2009 at 6:18:42PM

A:
Preview: ... ph. Now, average over the entire mile = (30 ...

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