document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=201879>Question 201879</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1. A disc jockey must play 16 commercial sports during 1 hour of a radio show. Each commercial is either 30 seconds or 60 seconds long. If the total commercial time during 1 hour is 13 min, how many 30-second commercial were played that hour? How many 60-second commercials?\r<BR>\n" );
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document.write( "2.The Everton College store paid $1834 for an order of 50 calculators. The store paid $ 10 each scientific calculator. The others, all graphing calculators, cost the store $56 each. How many of each type of calculator was ordered?\r<BR>\n" );
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document.write( "3.Snookers Lumber can convert logs into either lumber or plywood. In a given day, the mill turns out three times as many units of plywood as lumber. it makes a profit of $30 on a unit of lumber and $45 on a unit of plywood. How many of each unit must produced and sold in the order to make a profit of $16830?<BR>\n" );
document.write( "I have a hard time to Solving Word problems. please help me with step by step.<BR>\n" );
document.write( "I really appreciate !!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #152209 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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/cgi-bin/show-face.mpl?user=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=152209\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1.  let t=\"30 sec commercials\" and s=\"60 sec commercials\"\r<BR>\n" );
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document.write( "\"A disc jockey must play 16 commercial sports during 1 hour\" ___ t + s = 16 ___ t = 16 - s\r<BR>\n" );
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document.write( "\"total commercial time during 1 hour is 13 min\" ___ 60t + 30s = 13 * 60\r<BR>\n" );
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document.write( "substituting ___ 60 (16 - s) + 30s = 13 * 60\r<BR>\n" );
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document.write( "960 - 60s + 30s = 780 ___ -30s = -180 ___ s = 6\r<BR>\n" );
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document.write( "substituting ___ t + 6 = 16 ___ t = 10\r<BR>\n" );
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document.write( "follow this same technique for the other questions\r<BR>\n" );
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document.write( "2. let s=\"scientific calcs\" and g=\"graphing calcs\"\r<BR>\n" );
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document.write( "\"an order of 50 calculators\" ___ s + g = 50 ___ s = 50 - g\r<BR>\n" );
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document.write( "\"The Everton College store paid $1834\"<BR>\n" );
document.write( "\" The store paid $ 10 each scientific calculator. The others, all graphing calculators, cost the store $56 each\" ___ 10s + 56g = 1834\r<BR>\n" );
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document.write( "substituting ___ 10 (50 - g) + 56g = 1834<BR>\n" );
document.write( "solve for g, and then substitute to find s\r<BR>\n" );
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document.write( "3. let L=\"lumber units\" and p=\"plywood units\"\r<BR>\n" );
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document.write( "\"three times as many units of plywood as lumber\" ___ p = 3L\r<BR>\n" );
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document.write( "\"it makes a profit of $30 on a unit of lumber and $45 on a unit of plywood. How many of each unit must produced and sold in the order to make a profit of $16830\"<BR>\n" );
document.write( "30L + 45p = 16830\r<BR>\n" );
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document.write( "substituting ___ 30L + 45 (3L) = 16830<BR>\n" );
document.write( "solve for L, and substitute to find p </SPAN>\n" );
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