document.write( "Question 778180: john has grades of 84 and 80 on his first two algebra test . if he wants an average of at least 78, what possible scores can he make on his third? \n" ); document.write( "

Algebra.Com's Answer #474448 by rfer(16322) $\"\"$ $\"About$

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(84+80+x)/3=78
\n" ); document.write( "x=234-164
\n" ); document.write( "x=70 \n" ); document.write( "

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