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1Opción B

3,5 puntos
Apartado 1

Responda un problema de este apartado de los dos propuestos.

Una empresa de joyería tiene dos máquinas, AA y BB, con las que puede hacer anillos, pulseras y collares. La empresa tiene que decidir el número de horas de trabajo de cada una de las máquinas para la próxima semana. En cada hora de trabajo, la máquina AA realiza 22 anillos, 88 pulseras y 44 collares, mientras que la máquina BB realiza 99 anillos, 44 pulseras y 1010 collares. Durante la próxima semana la empresa debe producir al menos 8080 anillos, 9696 pulseras y 120120 collares. El coste por cada hora de trabajo de la máquina AA es 250250 euros y el de la máquina BB es 600600 euros.
a
¿Cuántas horas tiene que trabajar cada máquina para que el coste total de producción sea mínimo?3 pts
b
¿Cuál es dicho coste mínimo?0,5 pts

Formulario

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TABLA DE LA DISTRIBUCIÓN BINOMIAL P[X=x]=(nx)px(1−p)n−xP[X=x]=\binom{n}{x}p^x(1-p)^{n-x}
pp
nnxx0,010,050,100,150,200,250,301/31/30,350,400,450,490,50
200,98010,90250,81000,72250,64000,56250,49000,44440,42250,36000,30250,26010,2500
10,01980,09500,18000,25500,32000,37500,42000,44440,45500,48000,49500,49980,5000
20,00010,00250,01000,02250,04000,06250,09000,11110,12250,16000,20250,24010,2500
300,97030,85740,72900,61410,51200,42190,34300,29630,27460,21600,16640,13270,1250
10,02940,13540,24300,32510,38400,42190,44100,44440,44360,43200,40840,38230,3750
20,00030,00710,02700,05740,09600,14060,18900,22220,23890,28800,33410,36740,3750
30,00000,00010,00100,00340,00800,01560,02700,03700,04290,06400,09110,11760,1250
400,96060,81450,65610,52200,40960,31640,24010,19750,17850,12960,09150,06770,0625
10,03880,17150,29160,36850,40960,42190,41160,39510,38450,34560,29950,26000,2500
20,00060,01350,04860,09750,15360,21090,26460,29630,31050,34560,36750,37470,3750
30,00000,00050,00360,01150,02560,04690,07560,09880,11150,15360,20050,24000,2500
40,00000,00000,00010,00050,00160,00390,00810,01230,01500,02560,04100,05760,0625
500,95100,77380,59050,44370,32770,23730,16810,13170,11600,07780,05030,03450,0313
10,04800,20360,32810,39150,40960,39550,36020,32920,31240,25920,20590,16570,1563
20,00100,02140,07290,13820,20480,26370,30870,32920,33640,34560,33690,31850,3125
30,00000,00110,00810,02440,05120,08790,13230,16460,18110,23040,27570,30600,3125
40,00000,00000,00050,00220,00640,01460,02840,04120,04880,07680,11280,14700,1563
50,00000,00000,00000,00010,00030,00100,00240,00410,00530,01020,01850,02820,0313
600,94150,73510,53140,37710,26210,17800,11760,08780,07540,04670,02770,01760,0156
10,05710,23210,35430,39930,39320,35600,30250,26340,24370,18660,13590,10140,0938
20,00140,03050,09840,17620,24580,29660,32410,32920,32800,31100,27800,24360,2344
30,00000,00210,01460,04150,08190,13180,18520,21950,23550,27650,30320,31210,3125
40,00000,00010,00120,00550,01540,03300,05950,08230,09510,13820,18610,22490,2344
50,00000,00000,00010,00040,00150,00440,01020,01650,02050,03690,06090,08640,0938
60,00000,00000,00000,00000,00010,00020,00070,00140,00180,00410,00830,01380,0156
700,93210,69830,47830,32060,20970,13350,08240,05850,04900,02800,01520,00900,0078
10,06590,25730,37200,39600,36700,31150,24710,20480,18480,13060,08720,06040,0547
20,00200,04060,12400,20970,27530,31150,31770,30730,29850,26130,21400,17400,1641
30,00000,00360,02300,06170,11470,17300,22690,25610,26790,29030,29180,27860,2734
40,00000,00020,00260,01090,02870,05770,09720,12800,14420,19350,23880,26760,2734
50,00000,00000,00020,00120,00430,01150,02500,03840,04660,07740,11720,15430,1641
60,00000,00000,00000,00010,00040,00130,00360,00640,00840,01720,03200,04940,0547
70,00000,00000,00000,00000,00000,00010,00020,00050,00060,00160,00370,00680,0078
800,92270,66340,43050,27250,16780,10010,05760,03900,03190,01680,00840,00460,0039
10,07460,27930,38260,38470,33550,26700,19770,15610,13730,08960,05480,03520,0313
20,00260,05150,14880,23760,29360,31150,29650,27310,25870,20900,15690,11830,1094
30,00010,00540,03310,08390,14680,20760,25410,27310,27860,27870,25680,22730,2188
40,00000,00040,00460,01850,04590,08650,13610,17070,18750,23220,26270,27300,2734
50,00000,00000,00040,00260,00920,02310,04670,06830,08080,12390,17190,20980,2188
60,00000,00000,00000,00020,00110,00380,01000,01710,02170,04130,07030,10080,1094
70,00000,00000,00000,00000,00010,00040,00120,00240,00330,00790,01640,02770,0313
80,00000,00000,00000,00000,00000,00000,00010,00020,00020,00070,00170,00330,0039
900,91350,63020,38740,23160,13420,07510,04040,02600,02070,01010,00460,00230,0020
10,08300,29850,38740,36790,30200,22530,15560,11710,10040,06050,03390,02020,0176
20,00340,06290,17220,25970,30200,30030,26680,23410,21620,16120,11100,07760,0703
30,00010,00770,04460,10690,17620,23360,26680,27310,27160,25080,21190,17390,1641
40,00000,00060,00740,02830,06610,11680,17150,20480,21940,25080,26000,25060,2461
50,00000,00000,00080,00500,01650,03890,07350,10240,11810,16720,21280,24080,2461
60,00000,00000,00010,00060,00280,00870,02100,03410,04240,07430,11600,15420,1641
70,00000,00000,00000,00000,00030,00120,00390,00730,00980,02120,04070,06350,0703
80,00000,00000,00000,00000,00000,00010,00040,00090,00130,00350,00830,01530,0176
90,00000,00000,00000,00000,00000,00000,00000,00010,00010,00030,00080,00160,0020
Tabla de distribución Normal N(0,1)N(0,1) F(z)=P(Z≤z)F(z)=P(Z\le z)
Curva de la distribución normal con el área F(z) sombreada a la izquierda de z.
zz0,000,010,020,030,040,050,060,070,080,09
0,00,50000,50400,50800,51200,51600,51990,52390,52790,53190,5359
0,10,53980,54380,54780,55170,55570,55960,56360,56750,57140,5753
0,20,57930,58320,58710,59100,59480,59870,60260,60640,61030,6141
0,30,61790,62170,62550,62930,63310,63680,64060,64430,64800,6517
0,40,65540,65910,66280,66640,67000,67360,67720,68080,68440,6879
0,50,69150,69500,69850,70190,70540,70880,71230,71570,71900,7224
0,60,72570,72910,73240,73570,73890,74220,74540,74860,75170,7549
0,70,75800,76110,76420,76730,77040,77340,77640,77940,78230,7852
0,80,78810,79100,79390,79670,79950,80230,80510,80780,81060,8133
0,90,81590,81860,82120,82380,82640,82890,83150,83400,83650,8389
1,00,84130,84380,84610,84850,85080,85310,85540,85770,85990,8621
1,10,86430,86650,86860,87080,87290,87490,87700,87900,88100,8830
1,20,88490,88690,88880,89070,89250,89440,89620,89800,89970,9015
1,30,90320,90490,90660,90820,90990,91150,91310,91470,91620,9177
1,40,91920,92070,92220,92360,92510,92650,92790,92920,93060,9319
1,50,93320,93450,93570,93700,93820,93940,94060,94180,94290,9441
1,60,94520,94630,94740,94840,94950,95050,95150,95250,95350,9545
1,70,95540,95640,95730,95820,95910,95990,96080,96160,96250,9633
1,80,96410,96490,96560,96640,96710,96780,96860,96930,96990,9706
1,90,97130,97190,97260,97320,97380,97440,97500,97560,97610,9767
2,00,97720,97780,97830,97880,97930,97980,98030,98080,98120,9817
2,10,98210,98260,98300,98340,98380,98420,98460,98500,98540,9857
2,20,98610,98640,98680,98710,98750,98780,98810,98840,98870,9890
2,30,98930,98960,98980,99010,99040,99060,99090,99110,99130,9916
2,40,99180,99200,99220,99250,99270,99290,99310,99320,99340,9936
2,50,99380,99400,99410,99430,99450,99460,99480,99490,99510,9952
2,60,99530,99550,99560,99570,99590,99600,99610,99620,99630,9964
2,70,99650,99660,99670,99680,99690,99700,99710,99720,99730,9974
2,80,99740,99750,99760,99770,99770,99780,99790,99790,99800,9981
2,90,99810,99820,99820,99830,99840,99840,99850,99850,99860,9986
3,00,99870,99870,99870,99880,99880,99890,99890,99890,99900,9990
3,10,99900,99910,99910,99910,99920,99920,99920,99920,99930,9993
3,20,99930,99930,99940,99940,99940,99940,99940,99950,99950,9995
3,30,99950,99950,99950,99960,99960,99960,99960,99960,99960,9997
3,40,99970,99970,99970,99970,99970,99970,99970,99970,99970,9998
3,50,99980,99980,99980,99980,99980,99980,99980,99980,99980,9998
3,60,99980,99980,99990,99990,99990,99990,99990,99990,99990,9999
3,70,99990,99990,99990,99990,99990,99990,99990,99990,99990,9999
3,80,99990,99990,99990,99990,99990,99990,99990,99990,99990,9999
3,91,00001,00001,00001,00001,00001,00001,00001,00001,00001,0000