document.write( "Question 53947: Can someone please help me on this problem?\r
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document.write( " Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75, 63, and 68. I need to write an inequality representing the score that Sam must get on the last test to get a C grade.\r
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document.write( " Thanks,
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document.write( " Lyn \n" );
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Algebra.Com's Answer #36184 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75, 63, and 68. I need to write an inequality representing the score that Sam must get on the last test to get a C grade. \n" ); document.write( "----------------- \n" ); document.write( "Let \"x\" be his score on the 4th test. \n" ); document.write( "INEQUALITY \n" ); document.write( "The average of the 4 tests must be >= 70 \n" ); document.write( "(75+63+68+x)/4 >=70 \n" ); document.write( "(206+x)>=280 \n" ); document.write( "x>=74 \n" ); document.write( "His 4th test must be passed at a score of 74 or greater. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |