document.write( "Question 151723This question is from textbook elementary and intermediate algebra concepts and applications
\n" ); document.write( ": Here is what I came up with for an answer I was just wondering if I did it right?\r
\n" ); document.write( "\n" ); document.write( " $32.00 x 3=$96.00
\n" ); document.write( " $99.84 - $96.00 = $3.84/3 = $1.28 per pair\r
\n" ); document.write( "\n" ); document.write( "8. A woman buys three pairs of jeans for $99.84, including tax. If each pair of jeans cost $32, what was the sales tax rate?
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Algebra.Com's Answer #111552 by ankor@dixie-net.com(22740)\"\" \"About 
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8. A woman buys three pairs of jeans for $99.84, including tax. If each pair of jeans cost $32, what was the sales tax rate?
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\n" ); document.write( "Let x = sale tax rate (in decimals)
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\n" ); document.write( "Find the cost for the jeans: 3 * 32 = 96; (which you did)
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\n" ); document.write( "Tax + purchase = $99.84
\n" ); document.write( "96x + 96 = 99.84
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\n" ); document.write( "96x = 99.84 - 96
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\n" ); document.write( "96x = 3.84 (you got tax amt OK)
\n" ); document.write( "x = \"3.84%2F96\";(you found the amt of tax for each pair of jeans, not the tax rate)
\n" ); document.write( "x = .04; 4% sales tax rate
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\n" ); document.write( "Check solution
\n" ); document.write( ".04(96) + 96 =
\n" ); document.write( "3.84 + 96 = 99.84
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