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...: 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(1029)  (Show Source):
You can put this solution on YOUR website!By  :
![(M[1]+M[2]+M[3])/3=4](/cgi-bin/plot-formula.mpl?expression=%28M%5B1%5D%2BM%5B2%5D%2BM%5B3%5D%29%2F3=4&x=0003) ------> working eqn
 :
![M[1]](/cgi-bin/plot-formula.mpl?expression=M%5B1%5D&x=0003) = $p1
![M[2]](/cgi-bin/plot-formula.mpl?expression=M%5B2%5D&x=0003) = $3
![M[3]](/cgi-bin/plot-formula.mpl?expression=M%5B3%5D&x=0003) = $p2
Substituting:
![(p[1]+3+p[2])/3=4](/cgi-bin/plot-formula.mpl?expression=%28p%5B1%5D%2B3%2Bp%5B2%5D%29%2F3=4&x=0003)
![p[1]+3+p[2]=3*4](/cgi-bin/plot-formula.mpl?expression=p%5B1%5D%2B3%2Bp%5B2%5D=3%2A4&x=0003)
![p[2]=12-3-p[1]](/cgi-bin/plot-formula.mpl?expression=p%5B2%5D=12-3-p%5B1%5D&x=0003)
![p[2]=9-p[1]](/cgi-bin/plot-formula.mpl?expression=p%5B2%5D=9-p%5B1%5D&x=0003) -----------------> ANSWER, price of 3rd Mug
. By knowing price$ of , you can get price$ of by subtacting from $9.00
Thank you,
Jojo
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