document.write( "Question 582508: Mary's average grade on 5 math tests was 88. If her lowest grade was dropped, her average on the other 4 tests would be 90. What was Mary's lowest grade in the original set of 5 grades? (72 - 3) \n" ); document.write( "

Algebra.Com's Answer #372082 by josmiceli(19441) $\"\"$ $\"About$

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The sum of her grades on the 5 tests was
\n" ); document.write( " $\"+88%2A5+=+440+\"$
\n" ); document.write( "With lowest grade dropped, the sum of
\n" ); document.write( "the remaining 4 grades is
\n" ); document.write( " $\"+90%2A4+=+360+\"$
\n" ); document.write( "Her lowest grade was $\"+440+-+360+=+80+\"$ \n" ); document.write( "

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