document.write( "Question 406619: This is an application problem that involves Inequalities.
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document.write( "Betty bowled 3 games. After the first 2 games, her scores were 200 and 90. Her average score was 140. What did she bowl in the 3rd game? There is a hint: use the variable x for what she bowled in the 3rd game and write an equation. \n" );
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Algebra.Com's Answer #286880 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! The average is 140, so\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(200 + 90 + x)/3 = 140\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "200 + 90 + x = 420 --> 290 + x = 420 --> x = 130. \n" ); document.write( " |