document.write( "Question 1208177: Hi
\n" ); document.write( "Mr Thomas spent $1972 on cars and dolls. He bought 3 times as many cars as dolls. Each doll cost $10 more than each car. She paid $476 more for the cars than the dolls. What is the cost of a doll. \n" ); document.write( "
Algebra.Com's Answer #846412 by mccravyedwin(406)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Take advantage of available technology. \r\n" );
document.write( "Use a separate letter for every unknown, \r\n" );
document.write( "which makes setting up a problem easy.\r\n" );
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document.write( "Let the number of cars = c\r\n" );
document.write( "Let the cost of a car = x\r\n" );
document.write( "Let the number of dolls = d\r\n" );
document.write( "Let the cost of a doll = y\r\n" );
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document.write( "Mr. Thomas spent $1972 on cars and dolls. \r\n" );
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document.write( "cx + dy = 1972\r\n" );
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document.write( "He bought 3 times as many cars as dolls. \r\n" );
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document.write( "c = 3d\r\n" );
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document.write( "Each doll cost $10 more than each car. \r\n" );
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document.write( "y = x + 10\r\n" );
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document.write( "She paid $476 more for the cars than the dolls. \r\n" );
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document.write( "Cx = Dy + 476\r\n" );
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document.write( "What is the cost of a doll?\r\n" );
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document.write( "Go to this site: \r\n" );
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document.write( "https://www.emathhelp.net/en/calculators/algebra-2/system-of-equations-solver/?\r\n" );
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document.write( "Where it says \"Enter a system of equations, type in \r\n" );
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document.write( "cx + dy = 1972, c = 3d, y = x + 10, cx = dy + 476\r\n" );
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document.write( "Click \"calculate\".  \r\n" );
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document.write( "Scroll down and read \r\n" );
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document.write( "c = 102, d = 34, x = 12, y = 22\r\n" );
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document.write( "Cost of a doll = $y = $22\r\n" );
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document.write( "Edwin
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