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3 years ago

10

Tina buys a briefcase online for 62.95. If shipping and handling are an additional 20% of the price, how much shipping and handl

ing will Tina pay?

1 answer:

Alexxandr [17]3 years ago

4 0

Answer:

Tina will pay $12.95 for shipping and handling.

Step-by-step explanation:

Because you literally just have to multiply $62.95 by .2 and you have your answer.

You might be interested in

The lengths of pregnancies are normally distributed with a mean of days and a standard deviation of days. a. Find the probabilit

Alik [6]

Answer:

a) The probability of a pregnancy lasting X days or longer is given by 1 subtracted by the p-value of $Z = \frac{X - \mu}{\sigma}$ , in which $\mu$ is the mean and $\sigma$ is the standard deviation.

b) We have to find X when Z has a p-value of $\frac{a}{100}$ , and X is given by: $X = \mu - Z\sigma$ , in which $\mu$ is the mean and $\sigma$ is the standard deviation.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

In this question:

Mean $\mu$ , standard deviation $\sigma$

a. Find the probability of a pregnancy lasting X days or longer.

The probability of a pregnancy lasting X days or longer is given by 1 subtracted by the p-value of $Z = \frac{X - \mu}{\sigma}$ , in which $\mu$ is the mean and $\sigma$ is the standard deviation.

b. If the length of pregnancy is in the lowest a%, then the baby is premature. Find the length that separates premature babies from those who are not premature.

We have to find X when Z has a p-value of $\frac{a}{100}$ , and X is given by: $X = \mu - Z\sigma$ , in which $\mu$ is the mean and $\sigma$ is the standard deviation.

8 0

3 years ago

Write the quadratic function in VERTEX FORM that has the vertex (-4, -6) and passes through (-3, -5)

kumpel [21]

Answer:

hi

Step-by-step explanation:

6 0

3 years ago

im going give 60 point please answer The temperature inside the command center is 21 degrees C. The temperature outside the comm

kolbaska11 [484]

Answer:

33 degrees

Step-by-step explanation:

It is 21 degrees inside the command center and negative 12 degrees outside.

You want to find the difference between these, which means you want to subtract.

That will look like:

21 - (-12) = ?

since you have two negative signs next to each other, they will cancel each other out.

Our new equation:

21 + 12 =

21 + 12 = 33

The difference between these two temperatures is 33 degrees.

4 0

3 years ago

An airplane traveled 5.7 x 10 to the 2nd miles per hour for 1.4 x 10 to the 1st power hours. How far did the airplane travel

kvv77 [185]

S = v x t
= 5.7 x 10^2 x 1.4 x 10 = 7980 Miles

5 0

2 years ago

Find the length of a shadow cast by a building that is 610ft tall round to the tenths

galina1969 [7]

This problem is about triangles.

We must apply the trigonmetric relations to solve this.

I can see we have a right angle triangle.

Let's use the idea of the tangent.

tan (22º) = building height / shadow length

Let's plug given data on above formula:

tan(22º) = 610 ft / shadow length

I looked up and got tan(22º) = 0.40, so:

0.40 = 610 ft / shadow length

shadow length = 610 ft / 0.40

shadow length = 1,525 ft

Answer: shadow length is 1,525 ft .

3 0

1 year ago