document.write( "Question 249985: Media services charges $20 for a phone and $30/month for a plan. The equation c=30t+20 describes the total cost, c of operating the phone and t for the months
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document.write( "The total cost of 2 months service is?
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document.write( "and if a customer has only $90 available, how many moths service can they receive?
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document.write( "Help pleeese? Thanks \n" );
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Algebra.Com's Answer #181989 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! c=20+30*2=20+60=$80 for 2 months service. \n" ); document.write( "20+30t<90 \n" ); document.write( "30t<90-20 \n" ); document.write( "30t<70 \n" ); document.write( "t=70/30 \n" ); document.write( "t=2.333 months can be had for $90. \n" ); document.write( " |