document.write( "Question 150510This question is from textbook
\n" ); document.write( ": gian and arwin can finish a project in 4 2/3 hours. gian can do it alone in half as much time as arwin can do the job. How long will it take Arwin to do the job alone. \n" ); document.write( "
Algebra.Com's Answer #110480 by nerdybill(7384)\"\" \"About 
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gian and arwin can finish a project in 4 2/3 hours. gian can do it alone in half as much time as arwin can do the job. How long will it take Arwin to do the job alone.
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\n" ); document.write( "Let G = time it takes gian to do the the job alone
\n" ); document.write( "and A = time it takes arwin to do the the job alone
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\n" ); document.write( "Since you have two unknowns, you'll need to find two equations.
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\n" ); document.write( "G+A = 4 2/3 (or 4.667 hours) (equation 1)
\n" ); document.write( "G = (1/2)A (equation 2)
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\n" ); document.write( "Use the definition of G (from equation 2) and substitute it into equation 1 to find G:
\n" ); document.write( "G+A = 4.667
\n" ); document.write( "(1/2)A+A = 4.667
\n" ); document.write( "Multiply both sides by 2 to rid ourselves of all denominators:
\n" ); document.write( "A + 2A = 9.334
\n" ); document.write( "3A = 9.334
\n" ); document.write( "A = 3.11 hours (time it take arwin to do the job alone)
\n" ); document.write( "Or, 3 hours 7 mins
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\n" ); document.write( "G = (1/2)A = 1.56 hours (time it takes gian to do the job alone)
\n" ); document.write( "Or 1 hour 34 mins
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