document.write( "Question 1112037: The average age of Ramona's three cousins is 13. One of her cousins is 7 years old and another is 15 years old.\r
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Algebra.Com's Answer #727056 by ikleyn(52803) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( " = 13         <<<---=== I edited my typo after the @MathTherapy post.   Thanks @MathTherapy for noticing the typo !\r\n" );
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document.write( "7 + 15 + x = 13*3\r\n" );
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document.write( "22 + x = 39\r\n" );
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document.write( "x = 39 - 22 = 17.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Answer. Third cousin is 17 years old.\r
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\n" ); document.write( "\n" ); document.write( "Check. Do the check on your own.\r
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