document.write( "Question 770794: Mean is 90, what is value of missing number
\n" ); document.write( "90, 85, x, 95, 90, 100, 90, 100
\n" ); document.write( "I know the answer is 70 is their an equation to solve. \n" ); document.write( "

Algebra.Com's Answer #469759 by Jc0110(165) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"Mean=Sum%2FNumber+of+terms\"$
\n" ); document.write( " $\"90=%2890%2B85%2Bx%2B95%2B90%2B100%2B90%2B100%29%2F8\"$
\n" ); document.write( " $\"90=%28x%2B650%29%2F8\"$
\n" ); document.write( " $\"90%2A8=x%2B650\"$
\n" ); document.write( " $\"720=x%2B650\"$
\n" ); document.write( " $\"720-650=x\"$
\n" ); document.write( " $\"70=x\"$
\n" ); document.write( " $\"x=70\"$ \n" ); document.write( "

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