document.write( "Question 880490: Please help me set up an equation for this word problem!
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document.write( " Brent sent or received 384 text messages in 8 days. At this rate, how many text messages would he send or receive in 30 days?
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document.write( "thanks \n" );
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Algebra.Com's Answer #531499 by jim_thompson5910(35256) ![]() You can put this solution on YOUR website! Set up the proportion\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(384 messages)/(8 days) = (x messages)/(30 days)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "which turns into\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "384/8 = x/30\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-------------------------------------------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now cross multiply and solve for x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "384/8 = x/30\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "384*30 = 8x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "11520 = 8x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "11520/8 = x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "1440 = x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 1440\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "He sent & received 1440 text messages in 30 days.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |