document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=926420>Question 926420</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me!! I get so confused with these.\r<BR>\n" );
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document.write( "4.Follow the 5 steps below to complete this problem. (4 points)\r<BR>\n" );
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document.write( "Step 1:\r<BR>\n" );
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document.write( "Pick a friend or family member to be the character of your word problem. This friend or family member may do one of the following:<BR>\n" );
document.write( "•Drive a boat<BR>\n" );
document.write( "•Drive a jet ski\r<BR>\n" );
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document.write( "Step 2:\r<BR>\n" );
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document.write( "Select a current speed of the water in mph.\r<BR>\n" );
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document.write( "Step 3:\r<BR>\n" );
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document.write( "Select the number of hours (be reasonable please) that your friend or family member drove the boat or jets ski against the current speed you chose in step 2.\r<BR>\n" );
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document.write( "Step 4:\r<BR>\n" );
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document.write( "Select the number of hours that your friend or family member made the same trip with the current (this should be a smaller number, as your friend or family member will be traveling with the current).\r<BR>\n" );
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document.write( "Step 5:\r<BR>\n" );
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document.write( "Write out the word problem you created and calculate how fast your friend or family member was traveling in still water. Round your answer to the nearest mph.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #562231 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=562231\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "My friend Ken will drive a boat. \r<BR>\n" );
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document.write( "Step 2:<BR>\n" );
document.write( "Select a current speed of the water in mph.\r<BR>\n" );
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document.write( "Speed of current will be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7mph ALIGN=MIDDLE  ALT=\"7mph\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Step 3:<BR>\n" );
document.write( "Select the number of hours (be reasonable please) that your friend or family member drove the boat or jets ski against the current speed you chose in step 2.\r<BR>\n" );
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document.write( "Ken will drive the boat upstream <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60 ALIGN=MIDDLE  ALT=\"60\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6 ALIGN=MIDDLE  ALT=\"6\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours.\r<BR>\n" );
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document.write( "Step 4:<BR>\n" );
document.write( "Select the number of hours that your friend or family member made the same trip with the current (this should be a smaller number, as your friend or family member will be traveling with the current).\r<BR>\n" );
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document.write( "Ken will drive the boat downstream <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72 ALIGN=MIDDLE  ALT=\"72\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3 ALIGN=MIDDLE  ALT=\"3\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours. \r<BR>\n" );
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document.write( "Step 5:<BR>\n" );
document.write( "Write out the word problem you created and calculate how fast your friend or family member was traveling in still water. Round your answer to the nearest mph.\r<BR>\n" );
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document.write( "Ken wanted to try out his new boat so he parked his car and a friend drove him to the marina where he took possession of his boat. He drove the boat upstream 60 miles for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6 ALIGN=MIDDLE  ALT=\"6\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours and then back downstream <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72 ALIGN=MIDDLE  ALT=\"72\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles (to where his car with boat carrier was parked) in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3 ALIGN=MIDDLE  ALT=\"3\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours. What was the speed of the boat in still water?\r<BR>\n" );
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document.write( "Solution: \r<BR>\n" );
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document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C ALIGN=MIDDLE  ALT=\"C\"   DISABLED_style= \"max-width:90%; height:auto;\" > mph equal the Current of the river and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b ALIGN=MIDDLE  ALT=\"b\"   DISABLED_style= \"max-width:90%; height:auto;\" > mph the rate of the boat.\r<BR>\n" );
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document.write( "Remember that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+st ALIGN=MIDDLE  ALT=\"d+=+st\"   DISABLED_style= \"max-width:90%; height:auto;\" > (distance = speed * time)\r<BR>\n" );
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document.write( "Upstream: \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60+=+6%28b-c%29 ALIGN=MIDDLE  ALT=\"60+=+6%28b-c%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Downstream: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72+=+3%28b%2Bc%29 ALIGN=MIDDLE  ALT=\"72+=+3%28b%2Bc%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So we have two equations:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60+=+6b+-+6c ALIGN=MIDDLE  ALT=\"60+=+6b+-+6c\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72+=+3b+%2B+3c ALIGN=MIDDLE  ALT=\"72+=+3b+%2B+3c\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "_______________________\r<BR>\n" );
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document.write( "Solve both equations for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b ALIGN=MIDDLE  ALT=\"b\"   DISABLED_style= \"max-width:90%; height:auto;\" >:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+10+%2B+c ALIGN=MIDDLE  ALT=\"b+=+10+%2B+c\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+24+-+c ALIGN=MIDDLE  ALT=\"b+=+24+-+c\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "_________________________\r<BR>\n" );
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document.write( "Now set equal to each other and solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c ALIGN=MIDDLE  ALT=\"c\"   DISABLED_style= \"max-width:90%; height:auto;\" >:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10+%2B+c+=+24+-+c ALIGN=MIDDLE  ALT=\"10+%2B+c+=+24+-+c\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2c+=+14 ALIGN=MIDDLE  ALT=\"2c+=+14\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c+=+7mph ALIGN=MIDDLE  ALT=\"c+=+7mph\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So the speed of the current was <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7mph ALIGN=MIDDLE  ALT=\"7mph\"   DISABLED_style= \"max-width:90%; height:auto;\" >  \r<BR>\n" );
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document.write( "Now plug this into either of the original equations to find the speed of the boat in still water.\r<BR>\n" );
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document.write( "We will choose the first one:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+10+%2B+c ALIGN=MIDDLE  ALT=\"b+=+10+%2B+c\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+10+%2B+7 ALIGN=MIDDLE  ALT=\"b+=+10+%2B+7\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+17 ALIGN=MIDDLE  ALT=\"b+=+17\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The speed of the boat in still water was <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=17mph ALIGN=MIDDLE  ALT=\"17mph\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
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