document.write( "Question 836382: if the average of x,y,z and 60 is 75, then the average of (x-17) , (y+30) and (z-13) is
\n" ); document.write( "1) 80
\n" ); document.write( "2) 75
\n" ); document.write( "3) 70
\n" ); document.write( "4) 65
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #504146 by reviewermath(1029)\"\" \"About 
You can put this solution on YOUR website!
Q:
\n" ); document.write( "If the average of x,y,z and 60 is 75, then the average of (x-17) , (y+30) and (z-13) is
\n" ); document.write( "----------------------------------------------------------
\n" ); document.write( "A:
\n" ); document.write( "\"%28x+%2B+y+%2B+z+%2B+60%29%2F4+=+75\" --> x + y + z = 240\r
\n" ); document.write( "\n" ); document.write( "\"%28%28x-17%29+%2B+%28y+%2B+30%29+%2B+%28z+-+13%29%29%2F3\" = \"%28x+%2B+y+%2B+z%29%2F3+%2B+%28-17+%2B+30+-+13%29%2F3\"
\n" ); document.write( "= \"240%2F3+%2B+0\"
\n" ); document.write( "=\"highlight%2880%29\"
\n" ); document.write( "
\n" );