document.write( "Question 500835: sally can paint a room in 8 hours while it takes Steve 9 hours to paint the same room. How long would it take the to paint th eroom if they worked together? \n" ); document.write( "

Algebra.Com's Answer #338299 by josmiceli(19441) $\"\"$ $\"About$

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Add their rates of working
\n" ); document.write( "given:
\n" ); document.write( "sally's rate:
\n" ); document.write( " $\"+1%2F8+\"$ = 1 room in 8 hours
\n" ); document.write( "Steve's rate:
\n" ); document.write( " $\"+1%2F9+\"$ = 1 room in 9 hours
\n" ); document.write( "------------------------
\n" ); document.write( " $\"+1%2F8+%2B+1%2F9+=+1%2Fx+\"$
\n" ); document.write( " $\"+9%2F72+%2B+8%2F72+=+1%2Fx+\"$
\n" ); document.write( " $\"+9x+%2B+8x+=+72+\"$
\n" ); document.write( " $\"+17x+=+72+\"$
\n" ); document.write( " $\"+x+=+4.235+\"$
\n" ); document.write( " $\"+.235%2A60+=+14.118+\"$
\n" ); document.write( " $\"+.118%2A60++=+7+\"$
\n" ); document.write( "4 hours 14 min 7 sec \n" ); document.write( "

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