document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=419104>Question 419104</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please show the working.\r<BR>\n" );
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document.write( "if 0.25 inches^3 of paint is applied to a circular disk (top only) with a diameter of 20 inches what is the thickness of the paint?\r<BR>\n" );
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document.write( "At noon car A is traveling north at 30 mph and is located 20 miles north of car B. Car B is traveling west at 50 mph. what is the distance between the cars at 12:45 pm, rounded to the nearest mile? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #293133 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=293133\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if 0.25 inches^3 of paint is applied to a circular disk (top only) with a diameter of 20 inches what is the thickness of the paint?<BR>\n" );
document.write( "At noon car A is traveling north at 30 mph and is located 20 miles north of car B. Car B is traveling west at 50 mph. what is the distance between the cars at 12:45 pm, rounded to the nearest mile?\r<BR>\n" );
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document.write( "First problem:<BR>\n" );
document.write( "Volume = Area*height or Area*thickness<BR>\n" );
document.write( "thickness=volume/area<BR>\n" );
document.write( "Area of a circle= pir^2=3.14*10^2=314 in^2<BR>\n" );
document.write( "thickness=.25 in^3/314 in^2=.000796178 inches<BR>\n" );
document.write( "ans:<BR>\n" );
document.write( "Thickness of the paint=.000796178 inches\r<BR>\n" );
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document.write( "second problem:<BR>\n" );
document.write( "Distance = speed*time of travel<BR>\n" );
document.write( "At 12:45, car A will have traveled 30*(45/60)=90/4=45/2 miles which is added to the 20 miles it has already traveled for a total of 20+45/2 =42.5miles north.<BR>\n" );
document.write( "At 12:45, car B will have traveled 50*(45/60)=75/2=37.5 miles west.<BR>\n" );
document.write( "We now have a right triangle with legs of 42.5 and 37.5 miles.<BR>\n" );
document.write( "Using the pathagorean theorem to solve:<BR>\n" );
document.write( "x=sqrt(42.5^2+37.5^)=56.68 miles\r<BR>\n" );
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document.write( "ans:<BR>\n" );
document.write( "Distance between the cars at 12:45 PM = 57 miles\r<BR>\n" );
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document.write( " </SPAN>\n" );
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