document.write( "Question 1046128: One month,Ruby worked 6 hours more then Isaac,and svetlana worked 4 times as many hours as Ruby. Together they worked 126 hours. Find the number if hours each person worked
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Algebra.Com's Answer #661627 by ankor@dixie-net.com(22740)\"\" \"About 
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r = Ruby's hrs
\n" ); document.write( "i = Isaac's hrs
\n" ); document.write( "s = Svet's hrs
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\n" ); document.write( "write an equation for each statement
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\n" ); document.write( "One month, Ruby worked 6 hours more then Isaac,
\n" ); document.write( "r = i + 6
\n" ); document.write( "or
\n" ); document.write( "i = r - 6
\n" ); document.write( "and Svetlana worked 4 times as many hours as Ruby.
\n" ); document.write( "s = 4r
\n" ); document.write( "Together they worked 126 hours.
\n" ); document.write( "r + i + s = 126
\n" ); document.write( "replace i with (r-6), replace s with 4r
\n" ); document.write( "r + (r-6) + 4r = 126
\n" ); document.write( "6r - 6 = 126
\n" ); document.write( "6r = 126 + 6
\n" ); document.write( "6r = 132
\n" ); document.write( "r = 132/6
\n" ); document.write( "r = 22 hr for Ruby
\n" ); document.write( "then
\n" ); document.write( "i = 22 - 6
\n" ); document.write( "i = 16 hrs for Isaac
\n" ); document.write( "and
\n" ); document.write( "s = 4(22)
\n" ); document.write( "s = 88 hrs for Svet
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\n" ); document.write( "See if that adds up
\n" ); document.write( "22 + 16 + 88 = 126\r
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