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Mice21 [21]
3 years ago
10

Descrease £250 by 15%

Mathematics
2 answers:
irina [24]3 years ago
8 0
£212.5

Hope this helps c:
Citrus2011 [14]3 years ago
4 0

Answer:

£212.5

Step-by-step explanation:

15% of 250 = 37.5

250 - 37.5 = 212.5

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The density of acetic acid is 1.05 g/mL. What is the volume of 327 g of acetic acid?
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7 0
3 years ago
According to the data, the mean quantitative score on a standardized test for female college-bound high school seniors was 500.
Sveta_85 [38]

Answer:

6.68% of the female college-bound high school seniors had scores above 575.  

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 500

Standard Deviation, σ = 50

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(scores above 575)

P(x > 575)

P( x > 575) = P( z > \displaystyle\frac{575 - 500}{50}) = P(z > 1.5)

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Calculation the value from standard normal z table, we have,  

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6.68% of the female college-bound high school seniors had scores above 575.

7 0
3 years ago
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