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2 years ago

11

Or dylan, an nfl running back, rushed for an average of 88 yards per game this season, which is 20% lower than his average was l

ast season. what was his average then?

1 answer:

faltersainse [42]2 years ago

3 0

His previous average was 96 yards per game

You might be interested in

Evaluate the numerical expression 3+21-180÷9. The value of the expression is?

juin [17]

Answer:

the answer is 4.

the steps are...

180÷9=20 then 3+21=24 the subtract 20 and 24 then you will get 4

3 0

3 years ago

Read 2 more answers

In ΔCDE, the measure of ∠E=90°, the measure of ∠C=70°, and DE = 12 feet. Find the length of CD to the nearest tenth of a foot

Radda [10]

Answer:

$CD = 4.4ft$

Step-by-step explanation:

Given

$DE = 12$

$\angle C = 70^\circ$

Required

Find CD

This question is represented with the attached triangle

To solve CD, we make use of tan formula.

$tan(70) = \frac{DE}{CD}$

Substitute 12 for DE

$tan(70) = \frac{12}{CD}$

Make CD the subject

$CD = \frac{12}{tan(70)}$

$CD = \frac{12}{2.7475}$

$CD = 4.4ft$ --- approximated

6 0

3 years ago

Read 2 more answers

g If a random sample of 18 deliveries was selected instead and the standard deviation of these delivery times was found to be 9.

lana [24]

Answer:

We can use the z score formula given by:

$z= \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

If we use this formula we got:

$z=\frac{21-20}{\frac{9.31}{\sqrt{18}}}= 0.456$

$z=\frac{25-20}{\frac{9.31}{\sqrt{18}}}= 2.279$

And using a calculator, excel or the normal standard table and we have that:

$P(0.456$

Step-by-step explanation:

We assume this previous info: It is known that the amounts of time required for room-service delivery at a certain Marriott Hotel are Normally distributed with the average delivery time of 20 minutes.

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the delivery times of a population, and for this case we know the distribution for X is given by:

$X \sim N(20,9.31)$

Where $\mu=20$ and $\sigma=9.31$

Since the distribution for X is normal then the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And we can use the z score formula given by:

$z= \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

If we use this formula we got:

$z=\frac{21-20}{\frac{9.31}{\sqrt{18}}}= 0.456$

$z=\frac{25-20}{\frac{9.31}{\sqrt{18}}}= 2.279$

And using a calculator, excel or the normal standard table and we have that:

$P(0.456$

6 0

4 years ago

Help please xoxoxoxoxo

navik [9.2K]

I have the answer but you have to come to discovery.hxuj.com

5 0

3 years ago

Anna wants to spend less than $60 for the subscription. Which inequality could be used to determine the number of months (x) tha

BartSMP [9]

Answer:

xy < 60

Where x is the amount of subscription per month and y is the number of months

Step-by-step explanation:

Given Anna wants to spend less than $60 for the subscription

Let the amount of subscription per month be x

Let the number of months which Anna can enjoy her music be y

The total amount of money spent by Anna on subscription = ( The amount of subscription per month )( Number of months )

Total amount = xy

Given total amount < 60

So xy < 60

Therefore the above is the inequality recquired.

6 0

3 years ago