document.write( "Question 1089650: Jack and Jill both have part time jobs. Last week, Jack worked 8 hours and Jill, 5 hours both of them earned a total of 800 pesos. This week, Jill worked 12 hours and Jack, 4 hours and they earned a total of 1250 pesos. How much is Jack's hourly rate? \n" ); document.write( "

Algebra.Com's Answer #703991 by ikleyn(52858) $\"\"$ $\"About$

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document.write( "Let x = Jack, y = Jill.\r\n" );
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document.write( "Then the condition says\r\n" );
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document.write( "8x +  5y =  800,   (1)\r\n" );
document.write( "4x + 12y = 1250.   (2)\r\n" );
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document.write( "Solve it by any method you know.\r\n" );
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document.write( "Unfortunately, when I tried to solve it, I got a non-integer solution,\r\n" );
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document.write( "which makes me to doubt in correctness of input data.\r\n" );
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