document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=366878>Question 366878</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The formula d = r x t is used to determine distance, d given the rate, r, and the time traveled, t.\r<BR>\n" );
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document.write( "A. solve the formula for time t. (could you show me how to work out this question?)\r<BR>\n" );
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document.write( "B. What is the average speed if you spent 5 hours and 45 minutes on the road and traveled 365.635 miles? ( show all your work please why I can understand how to do it.)<BR>\n" );
document.write( "C. If you traveled  19 miles at an average speed of 43 miles per hour, how long would it take you? (Show all your work please.)<BR>\n" );
document.write( "I really do need help understanding how to do this. Please help me.... </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #261726 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=261726\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The formula d = r x t is used to determine distance, d given the rate, r, and the time traveled, t. <BR>\n" );
document.write( "A. solve the formula for time t. (could you show me how to work out this question?) <BR>\n" );
document.write( "Initial formula:<BR>\n" );
document.write( "d = rt<BR>\n" );
document.write( "The idea is to isolate 't' to one side of the equation.  So, we would like to get rid of the 'r', we divide both sides by 'r':<BR>\n" );
document.write( "d/r = (rt)/r<BR>\n" );
document.write( "Notice the 'r's cancel on the right leaving:<BR>\n" );
document.write( "d/r = r  (this is what they're looking for)<BR>\n" );
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document.write( "B. What is the average speed if you spent 5 hours and 45 minutes on the road and traveled 365.635 miles? ( show all your work please why I can understand how to do it.)<BR>\n" );
document.write( "The 't' (time) in d=rt is in \"hours\"<BR>\n" );
document.write( "So, we must convert \"5 hours and 45 minutes\" into hours:<BR>\n" );
document.write( "45 mins = 45 mins * 1hr/60mins = 45/60 hr = 0.75 hr<BR>\n" );
document.write( "That is, 45 mins is the same as \"three quarters\" (.75) of an hour.<BR>\n" );
document.write( "Then 5+.75 =5.75 hours<BR>\n" );
document.write( "plug what was given into:<BR>\n" );
document.write( "d =rt<BR>\n" );
document.write( "365.635=r(5.75)<BR>\n" );
document.write( "365.635/5.75=r<BR>\n" );
document.write( "63.589 mph = r<BR>\n" );
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document.write( "C. If you traveled 19 miles at an average speed of 43 miles per hour, how long would it take you? (Show all your work please.)<BR>\n" );
document.write( "Plug what was given into:<BR>\n" );
document.write( "d=rt<BR>\n" );
document.write( "19 = 43t<BR>\n" );
document.write( "19/43 = t<BR>\n" );
document.write( "0.442 hours = t<BR>\n" );
document.write( "OR, converting to minutes:<BR>\n" );
document.write( "26.5 minutes = t </SPAN>\n" );
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