document.write( "Question 188979: Wireless phone company A charges $20 per month plus $0.12 per minute. Wireless phone company B charges $50 per month plus $0.06 per minute. For how many minutes of calls will the monthly bills be the same?\r
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document.write( "A)80 minutes
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document.write( "B)100 minutes
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document.write( "C)160 minutes
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document.write( "D)250 minutes
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document.write( "E)500 minutes \n" );
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Algebra.Com's Answer #141730 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! let x be the number of minutes \n" ); document.write( ": \n" ); document.write( "20+.12x=50+.06x \n" ); document.write( ": \n" ); document.write( ".06x=30 \n" ); document.write( ": \n" ); document.write( "x=500 minutes \n" ); document.write( ": \n" ); document.write( "answer is E \n" ); document.write( " |