Question 822456: Brendan is going on a candy binge and needs to stock up on sweets. He buys 2 more bags of M&M's as he does Snickers bars, and twice as many bags of skittles as Snickers bars. If a bag of skittles is $1.50, M&M's are $1.25, a Snicker bar costs $1.00, and Brendan spent a total of $34.00, how many bags of skittles did he buy?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
x = m&m
y = snickers
z = skittles
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x = y + 2
z = 2y
125x + 100y + 150z = 3400
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put the system of linear equations into standard form
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x - y = 2
2y - z = 0
125x + 100y + 150z = 3400
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answer:
x = m&m = 8
y = snickers = 6
z = skittles = 12
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