SOLUTION: 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...

Algebra ->  Average -> SOLUTION: 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...      Log On


   

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...
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
By Averaging:
%28M%5B1%5D%2BM%5B2%5D%2BM%5B3%5D%29%2F3=4 ------> working eqn
Price:
M%5B1%5D = $p1
M%5B2%5D = $3
M%5B3%5D = $p2
Substituting:
%28p%5B1%5D%2B3%2Bp%5B2%5D%29%2F3=4
p%5B1%5D%2B3%2Bp%5B2%5D=3%2A4
p%5B2%5D=12-3-p%5B1%5D
p%5B2%5D=9-p%5B1%5D -----------------> ANSWER, price of 3rd Mug
. By knowing price$ of M%5B1%5D, you can get price$ of M%5B3%5D by subtacting from $9.00
Thank you,
Jojo