Question 925382: Doggy treats sells three kinds of dog biscuits: small, medium, large.They sell each for $1,$2,and $3 respectively. twice as many small biscuits as large were sold last week. there were 1200 doggy biscuits sold all together last week.If doggy treats realized $2200 in revenues last week, how many of each biscuit type did they sell?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! x = small
y = medium
z = large
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x + y + z = 1200
x + 2y + 3z = 2200
x = 2z
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put the system of linear equations into standard form
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x + y + z = 1200
x + 2y + 3z = 2200
x - 2z = 0
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = small = 400
y = medium = 600
z = large = 200
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