document.write( "Question 59842: AT THE NCNB SAVINGS BANK IT TAKES A COMPUTER 4 HOURS TO PROCESS AND PRINT PAYROLL CHECKS. WHEN A SECOND COMPUTER IS USED AND THE TWO COMPUTERS WORK TOGETHER, THE CHECKS CAN BE PROCESSED AND PRINTED IN 3 HOURS. HOW LONG WOULD IT TAKE THE SECOND COMPUTER BY ITSELF TO PROCESS AND PRINT THE PAYROLL CHECKS? \n" ); document.write( "
Algebra.Com's Answer #41100 by checkley71(8403)\"\" \"About 
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(4*X)/(4+X)=3 THIS FORMULA IS THE PRODUCT DIVIDEDBY THE SUM OF THE TWO MACHINES EQUALS THE COMBINED TIME FOR BOTH MACHINES.
\n" ); document.write( "4X=3(4+X)
\n" ); document.write( "4X=12+3X
\n" ); document.write( "4X-3X=12
\n" ); document.write( "X=12HOURS FOR THE SECOND MACHING TO PROCESS THE CHECKS.
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