document.write( "Question 11458: I am in the restaurant industry, and am trying to fing the correct formula to solve this question.
\n" ); document.write( "If i could only spend $28. per person and i want tax and tip (totaling 27.75%) to be inclusive in this price, how much would my food total be and how much would my tax and tip be? (I can only spend $28.00 including tax and tip)\r
\n" ); document.write( "\n" ); document.write( "I know the answer is $21.92 for food and $6.08 for tax and tip.
\n" ); document.write( "What is the formula so i can figure out other denominations?
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Algebra.Com's Answer #5937 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Here's the way you work this out. Change the tax & tip percentage to a decimal. (27.75% = 0.2775)\r
\n" ); document.write( "\n" ); document.write( "You know that the cost of the food (F) plus 27.75% of the cost of the food (tax & tip = 0.2775F) adds up to the total bill of $28.00. This can be written as:\r
\n" ); document.write( "\n" ); document.write( "\"F+%2B+%280.2775%29F+=+28.00\" Simplify.
\n" ); document.write( "\"%281.2775%29F+=+28.00\" Divide both sides by 1.2775
\n" ); document.write( "\"F+=+21.917\" round this up to $21.92 Cost of the food.\r
\n" ); document.write( "\n" ); document.write( "So a shortcut would be: Cost of food = the total bill divided by (1 + tax & tip) (as a decimal)\r
\n" ); document.write( "\n" ); document.write( "Now subtract the cost of the food (F = $21.92) from the total bill ($28.00) and you get the tax & tip amount.\r
\n" ); document.write( "\n" ); document.write( "\"28.00+-+21.92+=+6.08\" Tax & tip = $6.08.
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