document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=63054>Question 63054</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/1559533404/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\">               THIS IS ABOUT USING RATES.......\r<BR>\n" );
document.write( "\n" );
document.write( "Wyonna bought a prepaid calling card for $5. It allows her to make 80 minutes worth of calls. \r<BR>\n" );
document.write( "\n" );
document.write( "A.	estimate the prepaid calling cards cost per minute. Explain your thinking. <BR>\n" );
document.write( " <BR>\n" );
document.write( "  B. Calculate the actual cost per minute \r<BR>\n" );
document.write( "\n" );
document.write( "C. After purchasing her prepaid card, wyonna made a 15- minute call to her friend Samson. How much is the card worth now?\r<BR>\n" );
document.write( "\n" );
document.write( "D. Wynonna’s home telephone service provides a calling card that cost 8cents per minute. Which calling card would u recommend she use? Why? \r<BR>\n" );
document.write( "\n" );
document.write( "E.<BR>\n" );
document.write( "Wynonna has made plans for a 7-day vacation. She expects to make 30minutes of  calls each day. How many prepaid calling cards should she take along? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #43898 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=43898\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">               THIS IS ABOUT USING RATES.......\r<BR>\n" );
document.write( "\n" );
document.write( "Wyonna bought a prepaid calling card for $5. It allows her to make 80 minutes worth of calls. \r<BR>\n" );
document.write( "\n" );
document.write( "A.	estimate the prepaid calling cards cost per minute. Explain your thinking. <BR>\n" );
document.write( "A little more than $.06, because $4.80 would be $.06(80).<BR>\n" );
document.write( " :<BR>\n" );
document.write( "  B. Calculate the actual cost per minute<BR>\n" );
document.write( "$5.00/80min=$.0625 per min.<BR>\n" );
document.write( ": \r<BR>\n" );
document.write( "\n" );
document.write( "C. After purchasing her prepaid card, wyonna made a 15- minute call to her friend Samson. How much is the card worth now?<BR>\n" );
document.write( "$5.00-$0.0625(15)<BR>\n" );
document.write( "$5.00-$.9375<BR>\n" );
document.write( "$4.0625<BR>\n" );
document.write( ":\r<BR>\n" );
document.write( "\n" );
document.write( "D. Wynonna’s home telephone service provides a calling card that cost 8cents per minute. Which calling card would u recommend she use? Why? <BR>\n" );
document.write( "The prepaid card is $.08-$.0625=$.0175 cheaper per minute, so I would recommend that.  (We aren't told if the convenience of the home telephone service is worth almost 2 cents per minute.)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "E.<BR>\n" );
document.write( "Wynonna has made plans for a 7-day vacation. She expects to make 30minutes of  calls each day. How many prepaid calling cards should she take along?<BR>\n" );
document.write( "7days(30min/day)=210 min<BR>\n" );
document.write( "3(80 min)=240 min, therefore, she should take 3 prepaid calling cards.<BR>\n" );
document.write( "Happy Calculating!!! </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );