b3rry
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#1
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Here is the paper:
https://d0247e65b1a6ead8e6286cd43803...%20Edexcel.pdf
Question 7(d)

i worked up to the this point:
a(x+1.4y)=capacity
'a' is the capacity of the standard cupboard.

i don't know where to go from here, would be nice if someone can explain it from here or if you have your own way to do this question i'd like to see the working out from beginning

:]
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Flame Alchemist
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I'd love to try to help, but unfortunately I promptly deleted my memories of this after the exam because I hated linear programming to hell and back.
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piotr.irving
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Firstly let the capacity of a small cupboard is C
The capacity of the large one would be 140% of C

total capacity = C * x + (140/100)C * y
= Cx + 1.4Cy
multiply by 5 to simplify it and you get
5x + 7y (which should be the answer)


C * x [gives you the total capacity of all small cupboards]
140% = 140/100 [relating the capacity of the smaller cupboard to the larger one]
1.4C * y [gives you the total capacity of all large cupboards]
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Mutleybm1996
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(Original post by b3rry)
Here is the paper:
https://d0247e65b1a6ead8e6286cd43803...%20Edexcel.pdf
Question 7(d)

i worked up to the this point:
a(x+1.4y)=capacity
'a' is the capacity of the standard cupboard.

i don't know where to go from here, would be nice if someone can explain it from here or if you have your own way to do this question i'd like to see the working out from beginning

:]
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