document.write( "Question 1054522: You take 4 tests and your score goes up 3 points each time you take one. If you got an 82 your first test, what was your average number of points per test? \n" ); document.write( "

Algebra.Com's Answer #669738 by Fombitz(32388) $\"\"$ $\"About$

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First test : $\"X\"$
\n" ); document.write( "Second test : $\"X%2B3\"$
\n" ); document.write( "Third test : $\"X%2B3%2B3=X%2B6\"$
\n" ); document.write( "Fourth test : $\"+X%2B6%2B3=X%2B9\"$
\n" ); document.write( "So then the average would be,
\n" ); document.write( " $\"A=%28X%2BX%2B3%2BX%2B6%2BX%2B9%29%2F4=%284X%2B18%29%2F4=X%2B18%2F4=X%2B9%2F2\"$
\n" ); document.write( "Substituting,
\n" ); document.write( " $\"A=82%2B9%2F2\"$
\n" ); document.write( " $\"A=86.5\"$
\n" ); document.write( " \n" ); document.write( "

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