document.write( "Question 697540: One computer can process the payroll for a company in 5hours. A new computer can process it in 3 hours. Which equation could be used to find how long it will take to process the payroll if both computers are used. \n" ); document.write( "

Algebra.Com's Answer #430095 by nerdybill(7384) $\"\"$ $\"About$

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One computer can process the payroll for a company in 5hours. A new computer can process it in 3 hours. Which equation could be used to find how long it will take to process the payroll if both computers are used.
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\n" ); document.write( "Since you don't provide the options available, the general equation is:
\n" ); document.write( "Let x = time (hours) for both
\n" ); document.write( "then
\n" ); document.write( "x(1/5 + 1/3) = 1
\n" ); document.write( "to solve:
\n" ); document.write( "multiplying both sides by 15:
\n" ); document.write( "x(3 + 5) = 15
\n" ); document.write( "x = 15/8
\n" ); document.write( "x = 1 hour and 53 minutes \n" ); document.write( "

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