Mathematics
rockerbabe
2016-04-25 19:03:27
Some assistance please
ANSWERS
Mouykeav
2016-04-25 21:18:07

Price for one ounce of Sumatra = x Price for one ounce of Celebess Kalossi = y  [latex] left { {{12x+4y=15} atop {4x+12y=21 }} ight. [ ext{ Multiply the second equation by (-3)}] \ \ left { {{12x+4y=15} atop {-12x-36y=-63 }} ight. [ ext{ Add both equations}] \ \ -32y = -48 \ y = frac{-48}{-32}= 1.5 \ \ 12x+4*1.5=15\12x+6=15\12x=15-6\12x=9\x= frac{9}{12}= 0.75[/latex] Answer is b. $0.75 for Sumatra and $1.5 for Celebess Kalossi 

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