document.write( "Question 931891: a cell phone company charges a monthly fee of $35 plus .05 per minute. Another company does NOT charge a monthly fee but charges .25 per minute. For how many minutes is the cost of the plans the same? \n" ); document.write( "
Algebra.Com's Answer #565858 by TimothyLamb(4379)\"\" \"About 
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y = 0.05x + 35
\n" ); document.write( "y = 0.25x
\n" ); document.write( "---
\n" ); document.write( "equate the costs of the two plans:
\n" ); document.write( "0.05x + 35 = 0.25x
\n" ); document.write( "0.20x = 35
\n" ); document.write( "x = 35/0.20
\n" ); document.write( "x = 175
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "at 175 minutes the costs of the two plans are the same
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