document.write( "Question 732410: laura has scored 64, 62 and 71 on her previous three tests. What score does she need on her next test so that her average is 64? \n" ); document.write( "
Algebra.Com's Answer #447836 by rfer(16322)\"\" \"About 
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(64+62+71+x)/4=64
\n" ); document.write( "197+x=64*4
\n" ); document.write( "x=256-197
\n" ); document.write( "x=59
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