document.write( "Question 1181722: Find the amount of tax and the tax rate. Round to the nearest hundredth of a percent. Cost of item:$142 selling price: $161.15 Tax amount:$ ? Tax rate= ?% \n" ); document.write( "
Algebra.Com's Answer #811624 by Theo(13342)\"\" \"About 
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you can't solve this problem for the tax or the tax rate because you need one to get the other.\r
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\n" ); document.write( "\n" ); document.write( "the cost of the item is 142.
\n" ); document.write( "the selling price is 161.15
\n" ); document.write( "the profit is 161.15 - 142 = 19.15\r
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\n" ); document.write( "\n" ); document.write( "you will be taxed on the profit of 19.15.\r
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\n" ); document.write( "\n" ); document.write( "in order to find the tax, you need to know the tax rate.\r
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\n" ); document.write( "\n" ); document.write( "in order to find the tax rate, you need to know the tax.
\n" ); document.write( "if you don't have one, you can't solve for the other.\r
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\n" ); document.write( "\n" ); document.write( "the formula for tax is T = P * R\r
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\n" ); document.write( "\n" ); document.write( "T is the tax
\n" ); document.write( "P is the profit
\n" ); document.write( "R is the tax rate\r
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\n" ); document.write( "\n" ); document.write( "if the profit is 19.15, the formula becomes T = 19.15 * R
\n" ); document.write( "if you don't know R, then you can't find T.\r
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\n" ); document.write( "\n" ); document.write( "if you take this formula and solve for R, it becomes R = T / 19.15
\n" ); document.write( "if you don't know T, then you can't find R.\r
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\n" ); document.write( "\n" ); document.write( "if you don't know either, then you can't solve the problem.
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