document.write( "Question 276737: what grade did a student receive on test one, if he received a 50, a 70, and a 90 on the other three test znc his test average is a 75 percent?\r
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Algebra.Com's Answer #201635 by checkley77(12844)\"\" \"About 
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(X+50+70+90)/4=75
\n" ); document.write( "(X+210)/4=75
\n" ); document.write( "X+210=75*4
\n" ); document.write( "X+210=300
\n" ); document.write( "X=300-210
\n" ); document.write( "X=90 IS THE GRADE FOR THE FIRST TEST CORE.
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