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vova2212 [387]
3 years ago
5

Preston's salary before taxes are taken out is p dollars. After taxes taken out, Preston's take home salary is t dollars. If p =

1.25t, what is Preston's take home salary in terms of his salary before taxes?
Mathematics
1 answer:
Karolina [17]3 years ago
7 0

Answer:

After\ Tax = \frac{p}{1.25}

Step-by-step explanation:

Given:

Before\ Tax =\$ p

After\ Tax =\$ t

p = 1.25t

Required

Determine his after tax salary in terms of p

To do this, we simply make t the subject in p = 1.25t

Divide both sides by 1.25

\frac{p}{1.25} = \frac{1.25t}{1.25}

\frac{p}{1.25} = t

t = \frac{p}{1.25}

Substitute p/1.25 for t in After\ Tax =\$ t

After\ Tax = \frac{p}{1.25}

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According to the WHO report, girls who are 2-years old have a mean head circumference of 47.18cm with a standard deviation of 1.
Verdich [7]

Answer:

1. z = -1.91429

The z score tells us that the head circumference of the girl with the down syndrome ( 44.5 cm) is 1.91429 standard deviations below the mean or average head circumference

2. 2.7792%

Step-by-step explanation:

1. Relative to the WHO data, what is this girls z-score?

z score formula is:

z = (x-μ)/σ, where

x is the raw score = 44.5 cm

μ is the population mean = 47.18cm

σ is the population standard deviation = 1.40cm

z = 44.5 - 47.18/1.40

z = -1.91429

What does the z score tell us?

The z score tells us that the head circumference of the girl with the down syndrome ( 44.5 cm) is 1.91429 standard deviations below the mean or average head circumference

2. Using the WHO data in a normal model, what percentage of the girls has a head circumference that is smaller than the girl with Down's Syndrome?

z score = -1.91429

Probability value from Z-Table:

P(z =-1.91429) = P(x<44.5) = 0.027792

Converting to percentage = 0.027792 × 100

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What is the M.A.D of 1,1,1,1,5?
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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