document.write( "Question 892489: If the rate of sales tax is increased by 2%, the selling price of an article goes up by 140. Find the marked price of the article. \n" ); document.write( "

Algebra.Com's Answer #540539 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+t+\"$ = the actual sales tax
\n" ); document.write( "Let $\"+s+\"$ = the actual selling price
\n" ); document.write( "Let $\"+m+\"$ = the marked price
\n" ); document.write( "--------------
\n" ); document.write( "(1) $\"+s+=+m+%2B+t+\"$
\n" ); document.write( "(2) $\"+s+%2B+140+=+m+%2B+t+%2B+.02t+\"$
\n" ); document.write( "-----------------------------
\n" ); document.write( "Substitute (1) into (2)
\n" ); document.write( "(2) $\"+m+%2B+t+%2B+140+=+m+%2B+t+%2B+.02t+\"$
\n" ); document.write( "(2) $\"+140+=+.02t+\"$
\n" ); document.write( "(2) $\"+t+=+140%2F.02+\"$
\n" ); document.write( "(2) $\"+t+=+7000+\"$
\n" ); document.write( "------------------
\n" ); document.write( "(1) $\"+s+=+m+%2B+7000+\"$
\n" ); document.write( "(2) $\"+s+%2B+140+=+m+%2B+7140+\"$
\n" ); document.write( "(2) $\"+m+=+s+-+7000+\"$
\n" ); document.write( "This is as far as I can go with it
\n" ); document.write( " \n" ); document.write( "

\n" );