document.write( "Question 988640: A student earned grades of 88​, 74​, 76​, and 78 on her four regular tests. She earned a grade of 78 on the final exam and 84 on her class projects. Her combined homework grade was 84. The four regular tests count for​ 40% of the final​ grade, the final exam counts for 20​%, the project counts for​ 10%, and homework counts for 30​%. What is her weighted mean​ grade? Round to one decimal place. \n" ); document.write( "
Algebra.Com's Answer #609170 by ankor@dixie-net.com(22740)\"\" \"About 
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A student earned grades of 88​, 74​, 76​, and 78 on her four regular tests.
\n" ); document.write( " She earned a grade of 78 on the final exam and 84 on her class projects.
\n" ); document.write( " Her combined homework grade was 84.
\n" ); document.write( " The four regular tests count for​ 40% of the final​ grade, the final exam counts for 20​%, the project counts for​ 10%, and homework counts for 30​%.
\n" ); document.write( " What is her weighted mean​ grade? Round to one decimal place.
\n" ); document.write( ":
\n" ); document.write( "Find the average of the first 4 tests
\n" ); document.write( "\"%2888%2B74%2B76%2B78%29%2F4\" = 79
\n" ); document.write( ":
\n" ); document.write( "av = \"%284%2879%29+%2B+2%2878%29+%2B+84+%2B+3%2884%29%29%2F10\"
\n" ); document.write( "av = \"%28316+%2B+156+%2B+84+%2B+252%29%2F10\"
\n" ); document.write( "av = \"808%2F10\"
\n" ); document.write( "av = 80.8
\n" ); document.write( "
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