document.write( "Question 476031: A mechanic charged $45 an hr , plus $225 for the parts if the total bill was 450, how long did the job take ? \n" ); document.write( "

Algebra.Com's Answer #326462 by Tatiana_Stebko(1539) $\"\"$ $\"About$

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Let x is a time
\n" ); document.write( " $\"45x%2B225=450\"$
\n" ); document.write( " $\"45x=450-225\"$
\n" ); document.write( " $\"45x=225\"$
\n" ); document.write( " $\"x=225%2F45\"$
\n" ); document.write( " $\"x=5\"$ hours \n" ); document.write( "

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