document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1002345>Question 1002345</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Over the last three evenings, Heather received a total of <BR>\n" );
document.write( "109<BR>\n" );
document.write( " phone calls at the call center. The third evening, she received <BR>\n" );
document.write( "4<BR>\n" );
document.write( " times as many calls as the second evening. The first evening, she received <BR>\n" );
document.write( "7<BR>\n" );
document.write( " more calls than the second evening. How many phone calls did she receive each evening?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #619275 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=619275\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Over the last three evenings, Heather received a total of <BR>\n" );
document.write( "109<BR>\n" );
document.write( "phone calls at the call center. The third evening, she received <BR>\n" );
document.write( "4<BR>\n" );
document.write( "times as many calls as the second evening. The first evening, she received <BR>\n" );
document.write( "7<BR>\n" );
document.write( "more calls than the second evening. How many phone calls did she receive each evening? <BR>\n" );
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document.write( "Let the # of calls per evening be a,b,c::<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "a + b + c = 109<BR>\n" );
document.write( "c = 4b<BR>\n" );
document.write( "a = b + 7<BR>\n" );
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document.write( "Substitute for a and c and solve for \"b\":<BR>\n" );
document.write( "b+7 + b + 4b = 109<BR>\n" );
document.write( "6b = 102<BR>\n" );
document.write( "b = 17 (# of calls on the 2nd evening)<BR>\n" );
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document.write( "a = b+7 = 24 (# of calls on the 1st evening)<BR>\n" );
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document.write( "c = 4b = 4*17 = 68 (# of calls on the 3rd evening)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "---- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );