document.write( "Question 807243: Cannot figure this out for the life of me!\r
\n" ); document.write( "\n" ); document.write( "Marissa has decided to change her cell phone service providers. Company A will charge her $12 per month $0.10 per minute, while Company B will charge her $0.15 per minute with no monthly service charge.\r
\n" ); document.write( "\n" ); document.write( "1) Find a linear function that relates the cost C of service to total minutes t on the phone for each company... (I have C(t)=.10x +12 and C(t)=.15 but I have no idea if that is even right)\r
\n" ); document.write( "\n" ); document.write( "2) determine the number of minutes for which the bill from Company A will be less than the bill from Company B.\r
\n" ); document.write( "\n" ); document.write( "3) Determine the number of minutes for which the bill from B will be less than the bill from A.\r
\n" ); document.write( "\n" ); document.write( "4) Determine the number of minutes for which the bill A will be equal to B.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Please help. I am so lost!! Thanks in advance \n" ); document.write( "

Algebra.Com's Answer #486235 by richwmiller(17219) $\"\"$ $\"About$

You can put this solution on YOUR website!
a=.1m+12
\n" ); document.write( "b=.15m
\n" ); document.write( "2)m>240
\n" ); document.write( "3)m<240
\n" ); document.write( "4)m=240\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );