document.write( "Question 1103658: Customers of a phone company can choose between two service plans for long distance calls. The first plan has an
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Algebra.Com's Answer #718363 by ikleyn(52803) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "First  plan:  18 + 0.14*m dollars, where m is the number of minutes.\r\n" );
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document.write( "Second plan:  10 + 0.18*m dollars, where m is the number of minutes.\r\n" );
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document.write( "For how many minutes of calls will the costs of the two plans be equal ?\r\n" );
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document.write( "              18 + 0.14*m = 10 + 0.18*m  ====>\r\n" );
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document.write( "              18 - 10 = 0.18m - 0.14m    ====>  8 = 0.04*m  ====>  m =  =  = 200 minutes.\r\n" );
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