document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=96088>Question 96088</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131808672/algebrahomeworkh>prentice hall mathematics algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> juan drives to work. because of traffic conditiond, he averages 22 miles per hour. he returns home averaging 32 miles per hour. the total travel time is 2 and 1/4 hours.\r<BR>\n" );
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document.write( "a. define a variable for the time juan takes to work. write an expression for the time juan takes to return home.\r<BR>\n" );
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document.write( "b. write and solve an equation to find the time juan spends driving to work.\r<BR>\n" );
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document.write( "I attempted to solve this problem and it was a mess. I don't understand how to solve this problem at all. Could someone explain it to me in depth please?\r<BR>\n" );
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document.write( "Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #69988 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=69988\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> juan drives to work. because of traffic conditions, he averages 22 miles per hour. he returns home averaging 32 miles per hour. the total travel time is 2 and 1/4 hours.\r<BR>\n" );
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document.write( "a. define a variable for the time juan takes to work.<BR>\n" );
document.write( "Let t = time to work<BR>\n" );
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document.write( "\"write an expression for the time juan takes to return home.\"<BR>\n" );
document.write( "It says the total time for the round trip is 2.25 hrs, therefore<BR>\n" );
document.write( "(2.25 - t) = time to return home<BR>\n" );
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document.write( " b. write and solve an equation to find the time juan spends driving to work.<BR>\n" );
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document.write( "We know the distance to and from his work are equal so we can write a distance<BR>\n" );
document.write( "equation: Distance = speed * time<BR>\n" );
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document.write( "22t = 32(2.25-t)<BR>\n" );
document.write( "22t = 72 - 32t<BR>\n" );
document.write( "22t + 32t = 72<BR>\n" );
document.write( "54t = 72<BR>\n" );
document.write( "t = 72/54<BR>\n" );
document.write( "t = 1 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs, time to work <BR>\n" );
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document.write( "Check our solution by finding if the distances are equal, (in decimals on a calculator)<BR>\n" );
document.write( "22 * 1.33 = 29.3 miles<BR>\n" );
document.write( "32(2.25 - 1.33) = 29.4 miles, <BR>\n" );
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document.write( "Did this make sense to you? Any questions? </SPAN>\n" );
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