document.write( "Question 1067580: going into final, which will count as three test monica has test scores of 76, 90, 94, and 88. what score does monica need on the final exam in order to have an average score of 90? \n" ); document.write( "

Algebra.Com's Answer #682873 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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Going into final, which will count as three test, Monica has test scores of 76, 90, 94, and 88.
\n" ); document.write( " What score does Monica need on the final exam in order to have an average score of 90?
\n" ); document.write( ":
\n" ); document.write( "let x = the final score
\n" ); document.write( "Since the final counts as 3 tests, we will treat it like you had 7 scores.
\n" ); document.write( " $\"%28%2876%2B90%2B94%2B88%2B3x%29%29%2F7\"$ = 90
\n" ); document.write( "348 + 3x = 7(90)
\n" ); document.write( "3x = 630 - 348
\n" ); document.write( "3x = 282
\n" ); document.write( "x = 282/3
\n" ); document.write( "x = 94 is the required score \n" ); document.write( "

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