document.write( "Question 1089400: If the average score of 3 matches is 4 what must be score of the 4th game to bring the average to 5? \n" ); document.write( "

Algebra.Com's Answer #703755 by Fombitz(32388) $\"\"$ $\"About$

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$\"%28G%5B1%5D%2BG%5B2%5D%2BG%5B3%5D%29%2F3=4\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"G%5B1%5D%2BG%5B2%5D%2BG%5B3%5D=12\"$
\n" ); document.write( "Adding D,
\n" ); document.write( " $\"%28G%5B1%5D%2BG%5B2%5D%2BG%5B3%5D%2BG%5B4%5D%29%2F4=5\"$
\n" ); document.write( " $\"G%5B1%5D%2BG%5B2%5D%2BG%5B3%5D%2BG%5B4%5D=20\"$
\n" ); document.write( "Substituting,
\n" ); document.write( " $\"12%2BG%5B4%5D=20\"$
\n" ); document.write( "Solve for $\"G%5B4%5D\"$ .\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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