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Evgen [1.6K]
3 years ago
13

Subtract 5 from 1/3 of 23

Mathematics
2 answers:
WARRIOR [948]3 years ago
5 0
The answer is 2.8. or around there

Nataly_w [17]3 years ago
4 0
It is 2.6 repeating

i need more characters to answer
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Lunch break: In a recent survey of 655 working Americans ages 25-34, the average weekly amount spent on lunch was $43.5
Inga [223]

Using the Empirical Rule, it is found that:

  • a) Approximately 99.7% of the amounts are between $35.26 and $51.88.
  • b) Approximately 95% of the amounts are between $38.03 and $49.11.
  • c) Approximately 68% of the amounts fall between $40.73 and $46.27.

------------

The Empirical Rule states that, in a <em>bell-shaped </em>distribution:

  • Approximately 68% of the measures are within 1 standard deviation of the mean.
  • Approximately 95% of the measures are within 2 standard deviations of the mean.
  • Approximately 99.7% of the measures are within 3 standard deviations of the mean.

-----------

Item a:

43.5 - 3(2.77) = 35.26

43.5 + 3(2.77) = 51.88

Within <em>3 standard deviations of the mean</em>, thus, approximately 99.7%.

-----------

Item b:

43.5 - 2(2.77) = 38.03

43.5 + 2(2.77) = 49.11

Within 2<em> standard deviations of the mean</em>, thus, approximately 95%.

-----------

Item c:

  • 68% is within 1 standard deviation of the mean, so:

43.5 - 2.77 = 40.73

43.5 + 2.77 = 46.27

Approximately 68% of the amounts fall between $40.73 and $46.27.

A similar problem is given at brainly.com/question/15967965

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2 years ago
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Leviafan [203]

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Point x is located at (-2,-6) and point z is located at (0,5). Find the y value for the point y that is located 1/5 the disteanc
MA_775_DIABLO [31]

Answer:

-3.5


Step-by-step explanation:

We have to find the distance between x and z along the y-axis.

This will be: 5 - -6 = 11 units

1/5 th of 11 = 1/5 × 11

                 = 11/5

                 = 2 1/5 = 2.5

Now add 2.5 to -6

2.5 + -6 = -3.5

The value of y = -3.5

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3 years ago
×^4+×^3-7×^2+8×+1/×^2+3×-2
puteri [66]
X^4+ x^3 - 6x^2+8x-1
6 0
3 years ago
Suppose you got 8 mangoes and 3 apples for $18 and 3 mangoes and 5 apples for $14.50. How much does each mango and each apple co
pshichka [43]

The mango costs $1.5 and the apple costs $2.

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2 years ago
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