document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1198362>Question 1198362</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Elizabeth wants to start selling cookies at a local farmers market. The farmers market charges an initial set up fee of $175, and each cookie will cost $0.25 to make.<BR>\n" );
document.write( "Which of the following functions relates to the total cost (C) and the number of cookies made (n)?\r<BR>\n" );
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document.write( "A) C=175+0.25n<BR>\n" );
document.write( "B) C=0.25n-175<BR>\n" );
document.write( "C) C=175-0.25n<BR>\n" );
document.write( "D) C=2.5n+175<BR>\n" );
document.write( "E) C=0.25n </SPAN>\n" );
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document.write( "Answer: <font color=red>Choice A</font><BR>\n" );
document.write( "C = 175+0.25n\r<BR>\n" );
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document.write( "Reason:\r<BR>\n" );
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document.write( "n = number of cookies made<BR>\n" );
document.write( "0.25n = cost of making all of those n cookies at $0.25 each (aka 25 cents each)<BR>\n" );
document.write( "0.25n+175 = add on the initial set up fee and we arrive at the total cost\r<BR>\n" );
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document.write( "0.25n+175 is the same as <font color=red>175+0.25n</font> since the order of adding numbers doesn't matter (eg: 2+3 = 3+2)\r<BR>\n" );
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document.write( "---------------\r<BR>\n" );
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document.write( "An example:<BR>\n" );
document.write( "n = 200 cookies are made<BR>\n" );
document.write( "0.25n = 0.25*200 = 50 dollars in cost so far, ignoring the $175 fee<BR>\n" );
document.write( "0.25n+175 = 50+175 = 225 dollars total cost after adding on that initial $175 fee\r<BR>\n" );
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document.write( "In other words,<BR>\n" );
document.write( "C = 0.25n+175<BR>\n" );
document.write( "C = 0.25*200+175<BR>\n" );
document.write( "C = 50+175<BR>\n" );
document.write( "C = 225<BR>\n" );
document.write( "Making n = 200 cookies will cost C = 225 dollars.<BR>\n" );
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