document.write( "Question 54682: Statistics. Sam must have an average of 70 or more in his summer course to
\n" ); document.write( "obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality
\n" ); document.write( "representing the score that Sam must get on the last test to get a C grade.\r
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Algebra.Com's Answer #36918 by checkley71(8403)\"\" \"About 
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70<=(75+63+68+X)/4
\n" ); document.write( "70<=(206+X)/4
\n" ); document.write( "280<=206+X
\n" ); document.write( "280-206<=X
\n" ); document.write( "74<=X
\n" ); document.write( "HIS FINAL SCORE MUST BE AT LEAST 74 TO OBTAIN AN AVERAGE OF 70.
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