Tickets cost $4.80 each. The tickets with be 1.25 times the old price was. What will the new ticket price be? ANSWER ASAP!!!

Fill in the blank.

goldenfox [79]

Answer:

In the given expression x:6 :: 3:9 , x = 2

Step-by-step explanation:

Here, the given expression is:

x:6 :: 3:9

or, x : 6 = 3 :9

So, by the RATIO OF PROPORTIONALITY:

$\frac{x}{6} = \frac{3}{9}\\\implies x = \frac{3}{9} \times 6 = 2$

or, x = 2

Hence, in the given expression x:6 :: 3:9 , x = 2

4 0

4 years ago

Read 2 more answers

2x^3 + 3x^2 - 4x + 5 for x = -1

kykrilka [37]

Ok? is the question your asking, for what x equals or what the equation equals

7 0

3 years ago

About 245 out of 500 students prefer walking instead of riding the bus to school. About what percent of the students prefer walk

nasty-shy [4]

Answer:

49 percent

Step-by-step explanation:

So convert the fraction into a percentage

245/500= 49%

7 0

3 years ago

The average score of all golfers for a particular course has a mean of 75 and a standard deviation of 4. Suppose 64 golfers play

Vilka [71]

Answer:

0.0228 = 2.28% probability that the average score of the 64 golfers exceeded 76.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

$\mu = 75, \sigma = 4, n = 64, s = \frac{4}{\sqrt{64}} = 0.5$

Find the probability that the average score of the 64 golfers exceeded 76.

This is 1 subtracted by the pvalue of Z when X = 64.

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

By the Central Limit Theorem

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

$Z = \frac{76 - 75}{0.5}$

$Z = 2$

$Z = 2$ has a pvalue of 0.9772

1 - 0.9772 = 0.0228

0.0228 = 2.28% probability that the average score of the 64 golfers exceeded 76.

6 0

4 years ago

Where might be a lesser sooty owl be found sleeping?

emmainna [20.7K]

The Lesser Sooty Owl is a strictly nocturnal bird. Hides & sleeps during the day in dense foliage, between tangles of aerial roots, in all kinds of crevices, or beneath overhanging banks. Hunts in clearings and near roads, but also inside forest.

8 0

3 years ago