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Edexcel D1 - 17th June, 2016 [Exam discussion]

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For the linear programming I forgot to plot the first point urghhhh
Therefore my x and y value from simultaneous equations was wrong
I got the objective function
I then used these values to put them in the objective function
Overall how many marks am I likely to get :frown:

Reply 1061

Student403

Original post by igotohaggerston

Wait so what are you trying to say the answer is

C = x + 1.5y

Reply 1062

arjun patel kera

mark scheme anywhere??? cant find it

Reply 1063

vishva97

the question said the capacity of y is 50% greater than that of x hence the total capacity will be C = x + ( y +0.5X) giving you C = 1.5x +y

Reply 1064

Pablo Picasso

Who was the paper pls

Reply 1065

username2384435

Who else thought it was bun pips?

Reply 1066

Pablo Picasso

Anyone else get this for the matching answer

Spoiler

Reply 1067

username1445684

That paper was grim oml :frown:

worst way to end exams possible

Reply 1068

igotohaggerston

Original post by vishva97

the question said the capacity of y is 50% greater than that of x hence the total capacity will be C = x + ( y +0.5X) giving you C = 1.5x +y

Relax, breath take it easy hear yourself . lets forget the 50% it said y>x so why would you have 1.5x when the container of y is greater than x

Reply 1069

EricPiphany

Original post by Pablo Picasso

Who was the paper pls

Technically, I have it. But I ain't sharing it just yet.

Reply 1070

forthetillerman

Is there an unofficial mark scheme anywhere?

Reply 1071

Pablo Picasso

Original post by EricPiphany

Technically, I have it. But I ain't sharing it just yet.

I beg you, please, or atleast you can send it to me.

Reply 1072

veldt127

Original post by vishva97

the question said the capacity of y is 50% greater than that of x hence the total capacity will be C = x + ( y +0.5X) giving you C = 1.5x +y

You're saying y = y + 0.5x ...

X holds 10 units. Y holds 50% more = 15 units. It's x + 1.5y.

Reply 1073

thelegend99

Original post by Pablo Picasso

Anyone else get this for the matching answer

Spoiler

Lol nice, but I also put 'failure for D1' as one of them...

Reply 1074

SP98

Original post by Nuggetsarelife

Im a million percent sure
Prim= 80
Optimal Vertex = 11,4
Total Cost = £480

Was it not 9,5 and the cost £505?

Reply 1075

veldt127

Original post by SP98

Was it not 9,5 and the cost £505?

V was between 10 and 11 for X, and 4 and 5 for Y

Reply 1076

Pablo Picasso

135, for the final output right?

Reply 1077

Maetras

Original post by vishva97

the question said the capacity of y is 50% greater than that of x hence the total capacity will be C = x + ( y +0.5X) giving you C = 1.5x +y

Would P=cx+1.5cy get the mark where c is the capacity?

Reply 1078

SP98

Original post by veldt127

V was between 10 and 11 for X, and 4 and 5 for Y

I'm not fully certain, but don't these values give the optimal number and fit within the enclosed region?

Reply 1079

Midgeymoo17

Original post by veldt127

V was between 10 and 11 for X, and 4 and 5 for Y

Whoops. I got 12 and 2. But this is because my objective line was wrong.

(edited 7 years ago)

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Edexcel D1 - 17th June, 2016 [Exam discussion]

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