document.write( "Question 416559: Hi
\n" ); document.write( "Can you help me solve this problem? I tried it about five times and i am coming up with 38 and 122 for the answer but nothing is correct when I go to check.\r
\n" ); document.write( "\n" ); document.write( "solve: sara's telephone service costs $21 per month plus $0.25 for each local call, and long -distance calls are extra. Last month, Sara's bill was $34.64, and it included $6.14 in long-distance charges. How many local calls did she make?\r
\n" ); document.write( "\n" ); document.write( "Thanks so much. Your help is greatly appreciated.
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Algebra.Com's Answer #291836 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
You can start by writing the appropriate equation for the total cost (C) of Sarah's telephone service.
\n" ); document.write( "\"C+=+21%2B0.25x%2BD\" where x = the number of local calls at $0.25 each and D = the cost of the long-distance calls.
\n" ); document.write( "Substitute into equation above: C = $34.64 and D = $6.14
\n" ); document.write( "\"34.64+=+21%2B0.25x%2B6.14\" Simplify and solve for x.
\n" ); document.write( "\"34.64+=+21%2B6.14%2B0.25x\"
\n" ); document.write( "\"34.64+=+27.14%2B0.25x\" Subtract 27.14 from both sides.
\n" ); document.write( "\"7.50+=+0.25x\" Divide both sides by 0.25
\n" ); document.write( "\"30+=+x\"
\n" ); document.write( "Sarah made 30 local calls.
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