document.write( "Question 159081: The average price of 3 mugs is $4, one of the mugs cost $p and another mug cost $3...express the price of the 3rd mug in terms of p... \n" ); document.write( "
Algebra.Com's Answer #117200 by jojo14344(1513)\"\" \"About 
You can put this solution on YOUR website!
By \"Averaging\":
\n" ); document.write( "\"%28M%5B1%5D%2BM%5B2%5D%2BM%5B3%5D%29%2F3=4\" ------> working eqn
\n" ); document.write( "\"Price\":
\n" ); document.write( "\"M%5B1%5D\" = $p1
\n" ); document.write( "\"M%5B2%5D\" = $3
\n" ); document.write( "\"M%5B3%5D\" = $p2
\n" ); document.write( "Substituting:
\n" ); document.write( "\"%28p%5B1%5D%2B3%2Bp%5B2%5D%29%2F3=4\"
\n" ); document.write( "\"p%5B1%5D%2B3%2Bp%5B2%5D=3%2A4\"
\n" ); document.write( "\"p%5B2%5D=12-3-p%5B1%5D\"
\n" ); document.write( "\"p%5B2%5D=9-p%5B1%5D\" -----------------> ANSWER, price of 3rd Mug
\n" ); document.write( ". By knowing price$ of \"M%5B1%5D\", you can get price$ of \"M%5B3%5D\" by subtacting from $9.00
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo
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