document.write( "Question 110436: I sent this problem in but no one helped me so here it is again:\r
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document.write( "You order items from a menu that total $7.85. Your bill comes to $8.30, including the tax. What is the percent of the tax? Round to the nearest tenth. After you do the problem estimate a 15% tip for this order before the tax.\r
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document.write( "Thanks whoever does this a lot!!!!!! \n" );
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Algebra.Com's Answer #80480 by edjones(8007) You can put this solution on YOUR website! let x=1+decimal of the tax. \n" ); document.write( "7.85x=8.3 \n" ); document.write( "7.85x/7.85=8.3/7.85 \n" ); document.write( "x= 1.057 \n" ); document.write( "tax=(1.057-1)*100 \n" ); document.write( "=.057*100 \n" ); document.write( "5.7% \n" ); document.write( ". \n" ); document.write( "To calculate a 15% tip on 8.30: \n" ); document.write( "move the decimal point one to the left (.83) and add 1/2 the result to the result. .83+.41=1.24 est. \n" ); document.write( "Be a big spender and give $1.25 \n" ); document.write( "Ed \n" ); document.write( " |