document.write( "Question 256895: Media services charges $40 for a phone and $30/month for its economy plan.
\n" ); document.write( "Find a model that determines the total cost C(t) of operating a media services phone for t months.\r
\n" ); document.write( "\n" ); document.write( "C(t)= 30t+40 This is as far as I got.\r
\n" ); document.write( "\n" ); document.write( "Use the model to find the total cost for 10 months of service. Total cost =$\r
\n" ); document.write( "\n" ); document.write( "Thank you so much.
\n" ); document.write( "

Algebra.Com's Answer #189133 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Media services charges $40 for a phone and $30/month for its economy plan.
\n" ); document.write( "Find a model that determines the total cost C(t) of operating a media services phone for t months.
\n" ); document.write( "C(t)= 30t+40 This is as far as I got.
\n" ); document.write( "Use the model to find the total cost for 10 months of service. Total cost =$
\n" ); document.write( ":
\n" ); document.write( "Just substitute 10 for t
\n" ); document.write( "C(t) = 30(10) + 40
\n" ); document.write( "C(t) = 300 + 40
\n" ); document.write( "C(t) = $240
\n" ); document.write( "
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