document.write( "Question 706038: The total is $7.85. The bill is $8.30 including tax. What is the percentage of tax. \n" ); document.write( "

Algebra.Com's Answer #434944 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+x+\"$ = the dollar amount of the tax
\n" ); document.write( " $\"+7.85+%2B+x+=+8.3+\"$
\n" ); document.write( " $\"+x+=+8.3+-+7.85+\"$
\n" ); document.write( " $\"+x+=+.45+\"$
\n" ); document.write( " $\"+.45%2F+7.85+=+.0573+\"$
\n" ); document.write( " $\"+.0573%2A100+=+5.73+\"$
\n" ); document.write( "The tax is 5.73%\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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