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mina [271]
4 years ago
9

On a recent day, 8 euros were worth $9 and 24 euros were worth $27. Write an equation of the form y=kx to show the between the n

umber of euros and the value in dollars. Sentence: ___________, where y is dollars and x is euros.
Mathematics
1 answer:
g100num [7]4 years ago
5 0
$9= k•8 euros so k=9/8=1.125
So for every 1 euro we have $1.125
y=1.125•x

$27=k•24 euros so k=28/24=1.166666667
y=1.67•x

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Can somebody help me with this? I'm bad at this stuff <.
Sladkaya [172]

Answer:

Prime numbers are whole numbers that has factors of 1 and itself.

Example: 2 is a prime because there is no way you could factor it except 1 and 2.

Composite numbers have more factors which also include 1 and itself.

Example: 50 is composite because it has factors more than 1 and itself.

5 is a factor of 50; 10 is a factor of 50.

So let's begin sorting.

<em>Prime: 7, 11, 31.</em>

Composite: 4, 8, 10, 27.

Hope this helps! :)

6 0
3 years ago
Read 2 more answers
A survey of 32 different gas stations in Texas found the average price of gasoline to be $3.19 a gallon with a sample standard d
Leni [432]

Answer:

The value of test statistic is -4.1247

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = $3.26 a gallon

Sample mean, \bar{x} = $3.19 a gallon

Sample size, n = 32

Sample standard deviation, σ = $0.096

First, we design the null and the alternate hypothesis

H_{0}: \mu = 3.26\text{ dollars a gallon}\\H_A: \mu < 3.26\text{ dollars a gallon}

We use one-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{3.19 - 3.26}{\frac{0.096}{\sqrt{32}} } = -4.1247

Thus, the value of test statistic is -4.1247

3 0
3 years ago
3. Three soccer players are scored 25 goals this season.
Varvara68 [4.7K]

The mean goals scored by the soccer players this season is 18.3 goals

<h3>What is mean? </h3>

Mean is the ratio of the sum of data to the total sample of data.

If three soccer players are scored 25 goals this season., five soccer players  scored 19 goals this season and ten soccer players scored 16 goals this season, the mean goal scored is expressed as:

Mean goal scored = 3(25)+5(19)+10(16)/3+5+10

Mean goal scored = 75 + 95+160/18

Mean goal scored = 330/18

  • Mean goal scored = 18.3 goals

Hence the mean goals scored by the soccer players this season is 18.3 goals

Learn more on mean here: brainly.com/question/20118982

3 0
3 years ago
Point B corresponds to which Ordered Pair.. Question 1 options: (2, 6) (−2, 6) (2, −6) (−2, −6)
skad [1K]

where is the chart i cant say with out a chart

put the chart in another question and ill awwnser it because theres not enough information

5 0
3 years ago
Find 38% of the number 405. a. 153.9% c. 1065.79 b. 153.9 d. 15,390
vredina [299]
A.) 153.9 would be your answer!<span>
</span>
3 0
3 years ago
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