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TEA [102]
3 years ago
15

Edith wants to plan a dinner for one day of the week. She decides to put all the days of the week once into a hat. If she choose

s one day a random, what is the probability that she chooses a weekday?
Mathematics
1 answer:
Vesna [10]3 years ago
5 0

Answer:

The probability is 5/7

Step-by-step explanation:

In this question, what we are simply asked to calculate is that what is the probability of selecting a week day from the number of days in a week

The days in a week are ; Sunday Monday Tuesday Wednesday Thursday Friday Saturday

The total number of days in a week is thus 7

The weekdays are Monday Tuesday Wednesday Thursday Friday

The number of weekdays are 5

Thus, the probability of selecting a weekday by Edith is simply 5/7

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La tabla relacionada con la pregunta se puede encontrar en la imagen adjunta a continuación:

Responder:

70%

Explicación paso a paso:

probabilidad de seleccionar aleatoriamente a un participante que haya obtenido entre 71 y 85 puntos:

Probabilidad = resultado requerido / Total de resultados posibles

Resultados posibles totales = Sumando la frecuencia para obtener el número total de estudiantes = (9 + 12 + 12 + 18 + 9) = 60 estudiantes

Resultado requerido:

Clase :

(71 - 75) = frecuencia = 12

(76 - 80) = frecuencia = 12

(81 - 85) = frecuencia = 18

Total = (12 + 12 + 18) = 42 = resultado requerido

Por tanto, P = 42/60 = 0,7 = (0,7 * 100%) = 70%

4 0
3 years ago
56" board cut in 2 pieces and one piece is longer than 3 times the ​
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Answer:

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8 0
3 years ago
Rearrange to make x the subject t=bx/3
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Answer:

x = 3t/b

Step-by-step explanation:

Step 1: Multiply both sides by 3

t = bx/3

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Step 2: Divide both sides by <em>b</em>

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Barry is saving up to put new tires on truck the tires will cost 860 he has 180 plans to save 68dollars a week how many weeks wi
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Answer:

167.36 weeks

Step-by-step explanation:

Given: Currently has $180, the cost is $860, and he plans to save $68 a week

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Solution: If Barry currently has $180 and needs $860 for his tires also saves $68 a week, divide the amount he wants to save by the amount he saves a week, to find how many weeks will it take to save his money

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Subtract 180 because he already has $180 saved currently

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Hence, it will take approximately 167 weeks to save his money up to $860

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