document.write( "Question 838825: 3 siblings committed themselves to volunteer 130 hours\r
\n" ); document.write( "\n" ); document.write( "dave\r
\n" ); document.write( "\n" ); document.write( "kate worked 10 hrs fewer than dave\r
\n" ); document.write( "\n" ); document.write( "sarah worked 20 hrs more than dave \r
\n" ); document.write( "\n" ); document.write( "how many hrs did each sibling volunteer?\r
\n" ); document.write( "\n" ); document.write( "thanks in advance
\n" ); document.write( "dean \n" ); document.write( "

Algebra.Com's Answer #505364 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "kate worked 10 hrs fewer than dave  hrs
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document.write( " sarah worked 20 hrs more than dave  hrs
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document.write( "Question states***3 siblings committed themselves to volunteer 130 
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document.write( " (x-10hrs) + (x+20hrs) + xhrs = 130hr
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document.write( "    3x = 120hrs
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document.write( "     x = 40hrs, the number of hours Dave worked.
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document.write( "Kate worked 30hrs and Sarah worked 60hrs
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document.write( "CHECKING our answer***
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document.write( " 40hrs + 30hrs + 60hrs = 130hrs
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document.write( "Wish You the Best in your Studies.\r
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