document.write( "Question 956970: a plumber charges $70 for the first thirty minutes plus $4 additional minute that she works. the plumber charged kyle $122 for her time. what amount of time in minutes did plumber work
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Algebra.Com's Answer #584700 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+t+\"$ = time in minutes the plumber worked
\n" ); document.write( " $\"+122+=+70+%2B+%28+t+-+30+%29%2A4+\"$
\n" ); document.write( " $\"+122+=+70+%2B+4t+-+120+\"$
\n" ); document.write( " $\"+242+-+70+=+4t+\"$
\n" ); document.write( " $\"+172+=+4t+\"$
\n" ); document.write( " $\"+t+=+43+\"$
\n" ); document.write( "------------
\n" ); document.write( "The plumber worked 43 min
\n" ); document.write( "check:
\n" ); document.write( " $\"+122+=+70+%2B+%28+43+-+30+%29%2A4+\"$
\n" ); document.write( " $\"+122+=+70+%2B+13%2A4+\"$
\n" ); document.write( " $\"+122+-+70+=+52+\"$
\n" ); document.write( " $\"+52+=+52+\"$
\n" ); document.write( "OK \n" ); document.write( "

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