document.write( "Question 766868: I need your help on this word problem:
\n" ); document.write( "A t-shirt manufacturer spends $1200 each day on costs plus $3 per shirt for labor and materials. The t-shirts sell for $12 each. How many t-shirts must the company sell in one day to make a profit of $500?
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Algebra.Com's Answer #467311 by ramkikk66(644)\"\" \"About 
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A t-shirt manufacturer spends $1200 each day on costs plus $3 per shirt for labor and materials. The t-shirts sell for $12 each. How many t-shirts must the company sell in one day to make a profit of $500?\r
\n" ); document.write( "\n" ); document.write( "Let the number of t-shirts be x.\r
\n" ); document.write( "\n" ); document.write( "Fixed costs = 1200
\n" ); document.write( "Variable cost (labour and materials) per t-shirt = 3
\n" ); document.write( "So total variable cost for x shirts = 3*x\r
\n" ); document.write( "\n" ); document.write( "Total cost = 1200 + 3*x
\n" ); document.write( "If the profit is 500, then the total selling price = 1200 + 3*x + 500 = 1700 + 3*x -----(1)\r
\n" ); document.write( "\n" ); document.write( "Selling price of 1 shirt = $12\r
\n" ); document.write( "\n" ); document.write( "So selling price of x shirts = 12*x ------(2)\r
\n" ); document.write( "\n" ); document.write( "Equating both (1) and (2)\r
\n" ); document.write( "\n" ); document.write( "1700 + 3*x = 12*x\r
\n" ); document.write( "\n" ); document.write( "1700 = 9*x\r
\n" ); document.write( "\n" ); document.write( "x = 1700/9 = 188.88 \r
\n" ); document.write( "\n" ); document.write( "So number of T-shirts to be sold to make a profit of $500 = 189 (rounding off
\n" ); document.write( "to next whole number)\r
\n" ); document.write( "\n" ); document.write( "Hope you got it :)
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