I got C = 2.5p + 0.5p^2
But the answer is different.
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Originally Posted by GAdams I got C = 2.5p + 0.5p^2
But the answer is different. what were your simultaneous equations?
EDIT: i got the same answer as you did. what's the actual answer?
30x + 900y = 525
60x + 3600y = 1950
The answer I had been given is wrong, I just checked on the exam website's marking scheme, we are both right! Yipeee!. Thanks!
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