document.write( "Question 746860: how would you find the starting amount if you only have the intest rate, time and final amount?
\n" ); document.write( "ex:
\n" ); document.write( "y=c(1+r)^t\r
\n" ); document.write( "\n" ); document.write( "400=?(1+0.042)^6 \n" ); document.write( "

Algebra.Com's Answer #454607 by checkley79(3341) $\"\"$ $\"About$

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400=?(1+0.042)^6
\n" ); document.write( "400=X(1.042)^6
\n" ); document.write( "400=X*1.28
\n" ); document.write( "X=400/1.28
\n" ); document.write( "X=$312.50 ANS. \n" ); document.write( "

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