SOLUTION: Let T = w(r) give the total number of minutes of radio advertising bought in a month by a small company as a function of the rate r in dollars per minute. Rates vary depending on t

Algebra ->  Inequalities -> SOLUTION: Let T = w(r) give the total number of minutes of radio advertising bought in a month by a small company as a function of the rate r in dollars per minute. Rates vary depending on t      Log On


   

Question 843600: Let T = w(r) give the total number of minutes of radio advertising bought in a month by a small company as a function of the rate r in dollars per minute. Rates vary depending on the time of day the ad runs, ranging from $45 to $90 per minute. The company's monthly radio advertising budget is $2450. Find the domain of the function T = w(r), assuming that all of the money in the advertising budget is spent.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
( dollars spent ) / ( dollars / minute ) = minutes of advertising
+T+=+w%28r%29+
+T+=+2450+%2F+r+
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The least minutes of advertising is:
+T%5Bmin%5D+=+2450%2F90+
+T%5Bmin%5D+=+27.222+
The most minutes of advertising is:
+T%5Bmax%5D+=+2450%2F45+
+T%5Bmax%5D+=+54.444+
The domain is 27.222 to 54.444 minutes