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LUCKY_DIMON [66]
4 years ago
8

Jessica and Emily each improved their yards by planting daylilies and ivy. They bought their supplies from the same store. Jessi

ca spent $196 on 14 daylilies and 14 pots of ivy. Emily spent $114 on 7 daylilies and 9 pots of ivy. Find the cost of one dayliliy and the cost of one pot of ivy.
Mathematics
1 answer:
Darya [45]4 years ago
7 0

Answer:The cost of one daylily is 6, and the cost of one pot of ivy is 8.

Step-by-step explanation:

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2.- Supóngase que los diámetros de los tornillos fabricados por una compañía están distribuidos normalmente con una media de 0.2
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Step-by-step explanation:

Usando la fórmula de puntuación z

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z = -2.5

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P (x <0.20) = 0.0062097

Para x> 0.28 pulgadas

z = 0.28 - 0.20 / 0.02

z = 1.5

Valor de probabilidad de Z-Table:

P (x <0.28) = 0.93319

P (x> 0.28) = 1 - P (x <0.28) = 0.066807

La probabilidad de que se produzcan tornillos defectuosos cuando el tornillo se considera defectuoso si su diámetro es inferior a 0.20 pulgadas o superior a 0.28 pulgadas es

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= 0.0062097 + 0.066807

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Conversión a porcentaje

= 0.0730167 × 100

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El porcentaje de tornillos defectuosos producidos es

7.30167%

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