document.write( "Question 892507: A man purchased an electronic calculator by paying 945 which includes a rebate of 10% on the marked price and a sales tax of 5%. Find the marked price of the calculator. \n" ); document.write( "
Algebra.Com's Answer #540604 by LinnW(1048) You can put this solution on YOUR website! Set x = the original price of the calculator \n" ); document.write( "(x-0.10x)+ 0.05*(x-0.10x) \n" ); document.write( "In the above, (x-0.10x) represents the original price - 10% of the original price. \n" ); document.write( "(x-0.10x)*0.05 represents 5% times original price - 10% \n" ); document.write( "****************** \n" ); document.write( "(x-0.10x)+ 0.05*(x-0.10x) \n" ); document.write( "(0.9x) + 0.05(0.9x) \n" ); document.write( "(0.9x) + (0.045x) \n" ); document.write( "(0.9+0.045)x \n" ); document.write( "(0.945)x \n" ); document.write( "So (0.945)x = 945 \n" ); document.write( "divide each side by 0.945 \n" ); document.write( " x = 945/0.945 \n" ); document.write( " x = 1000 \n" ); document.write( " |