document.write( "Question 1061396: In one month Karina earned $600 at her part-time job, and $90 was withheld for federal income tax. Suppose she earns $900 next month. How much will be withheld for federal income tax?
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\n" ); document.write( "In one month Karina earned $600 at her part-time job, and $90 was withheld for federal income tax. Suppose she earns $900 next month. How much will be withheld for federal income tax?
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With F being the federal withholdings on $900, we get the following PROPORTION: 
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document.write( " -------- Reducing 
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document.write( "2F = 3(90) ------ Cross-multiplying
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document.write( "F, or federal withholdings on $900 =  \n" );
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