document.write( "Question 59614: Mike has a 93% average in test, 91% average in quizzes. If the teacher weights the grade as follows: Tests - 65%; Quizzes - 25%; Final - 10%. What is this student's current average? What does the student need to earn on the final in order to earn an A? \n" ); document.write( "
Algebra.Com's Answer #41000 by funmath(2933)\"\" \"About 
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Mike has a 93% average in test, 91% average in quizzes. If the teacher weights the grade as follows: Tests - 65%; Quizzes - 25%; Final - 10%. What is this student's current average? What does the student need to earn on the final in order to earn an A?
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\n" ); document.write( "The reason I haven't answered this until now is that I don't know what the minimum is for an A. I am going to assume that a 90-100 is an A. If the low for an A is 94, just change the other side to a 94 and solve. Everything else is the same.
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\n" ); document.write( "Let the final be: x
\n" ); document.write( ".65(93)+.25(91)+.10x=90
\n" ); document.write( "60.45+22.75+.10x=90
\n" ); document.write( "83.2+.10x=90
\n" ); document.write( "-83.2+83.2+.10x=90-83.2
\n" ); document.write( ".10x=6.8
\n" ); document.write( ".10x/.10=6.8/.10
\n" ); document.write( "x=68
\n" ); document.write( "The student needs to get a 68% to have a 90% average. For some classes, that is an A.
\n" ); document.write( "Happy Calculating!!! \n" ); document.write( "
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