document.write( "Question 526363: How do you do this?? The average of the first 3 numbers was 9. The average of the next 7 numbers was 30. What was the overall average of the 10 numbers? \n" ); document.write( "
Algebra.Com's Answer #348498 by ankor@dixie-net.com(22740)\"\" \"About 
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How do you do this?? The average of the first 3 numbers was 9. The average of the next 7 numbers was 30.
\n" ); document.write( " What was the overall average of the 10 numbers?
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\n" ); document.write( "Av = \"%283%289%29+%2B+7%2830%29%29%2F10\"
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\n" ); document.write( "Av = \"%2827+%2B+210%29%2F10\"
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\n" ); document.write( "Av = \"237%2F10\"
\n" ); document.write( "Av = 23.7
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