document.write( "Question 13196: Problem solving extending charts!\r
\n" ); document.write( "\n" ); document.write( "1. Find the number of full 8 hr. shifts that Maria worked last month
\n" ); document.write( " (1) She worked twice as many 6 hr. shifts as 8 hr. shifts.
\n" ); document.write( " (2) She worked a total of 280 hrs.\r
\n" ); document.write( "\n" ); document.write( "Then you make a chart One column is 6h shifts the other is 8 h shifts. The first row is Hrs. Per shift x Number of shifts = Total hrs. worked.
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Algebra.Com's Answer #6713 by bam878s(77)\"\" \"About 
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Let x=number of 8hr shifts and y=number of 6hr shifts.
\n" ); document.write( "Note y=2x
\n" ); document.write( "we have 8x+6y=280
\n" ); document.write( "sub for y
\n" ); document.write( "8x+6(2x)=280
\n" ); document.write( "8x+12x=280
\n" ); document.write( "20x=280
\n" ); document.write( "divide both sides by 20 to get
\n" ); document.write( "x=14 8hr shifts
\n" ); document.write( "y=14*2=28 6hr shifts
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