document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=329315>Question 329315</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone please shoe me how to do this word problem with the steps?! I am stuck!\r<BR>\n" );
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document.write( "	Given the simple interest formula A=P(1+Rt).	 , where A is the accumulated amount you will have in t years if you invest the principal P at the rate R.<BR>\n" );
document.write( "a)	Solve the formula for R.  Leave the answer simplified.<BR>\n" );
document.write( "b)	What rate of interest are you earning if in 5 years your $6,000 investment has grown to be $7,140?<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 #236031 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=236031\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (a) Solve the formula for R.  Leave the answer simplified.\r<BR>\n" );
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document.write( "We need to isolate R.  In other words, we need to place R all alone on one side of the equation.  Thisis what is meant by solve for R.\r<BR>\n" );
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document.write( "A = P(1 + Rt)\r<BR>\n" );
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document.write( "A = P + RPt\r<BR>\n" );
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document.write( "A - P = RPt\r<BR>\n" );
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document.write( "(A - P)/Pt = R\r<BR>\n" );
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document.write( "(b) What rate of interest are you earning if in 5 years your $6,000 investment has grown to be $7,140?\r<BR>\n" );
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document.write( "We need to use the given formula.\r<BR>\n" );
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document.write( "A = P(1 + Rt)\r<BR>\n" );
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document.write( "Let A = 7140\r<BR>\n" );
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document.write( "Let R = rate of interest\r<BR>\n" );
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document.write( "Let P = 6000\r<BR>\n" );
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document.write( "Let t = 5\r<BR>\n" );
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document.write( "We now plug into formula and simplify.\r<BR>\n" );
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document.write( "7140 = 6000(1 + R5)\r<BR>\n" );
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document.write( "7140 = 6000 + 30000R\r<BR>\n" );
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document.write( "7140 - 6000 = 30000R\r<BR>\n" );
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document.write( "1140 = 30000R\r<BR>\n" );
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document.write( "1140/30000 = R\r<BR>\n" );
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document.write( "0.038 = R\r<BR>\n" );
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document.write( "3.8% = R\r<BR>\n" );
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