document.write( "Question 841298: Tim works part-time at a retail store. His salary varies directly by the number of hours worked. Last week he earned $99.45 for 13 hours of work. This week he earned $160.65.
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\n" ); document.write( "b. How many hours did he work?\r
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Algebra.Com's Answer #506753 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
99.45/13=160.65/x
\n" ); document.write( "99.45x=160.65*13
\n" ); document.write( "x=2088.45/99.45
\n" ); document.write( "x=21 hrs
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