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3 years ago

If a dozen eggs cost $1.35, what is the unit cost?

Mathematics

1 answer:

slava [35]3 years ago

6 0

1 dozen eggs = 12 eggs

1.35 / 12 = 0.1125.....so the unit cost = $ 0.11 (11 cents) per egg

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Writen the Number described by 1 ten 16 one

chubhunter [2.5K]

10 + 16 = 26

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3 years ago

What is the value of x?<br> Enter your answer in the box.<br> x I will give you a heart and 5 stars

Agata [3.3K]

Answer:

${ \tt{ \frac{56}{44.8} = \frac{35 }{(x + 4)} }} \\ \\ { \tt{56(x + 4) = 35 \times 44.8}} \\ \\ { \tt{56x + 224 = 1568}} \\ \\ { \tt{56x = 1344}} \\ \\ { \tt{x = \frac{1344}{56} }} \\ \\ { \tt{x = 24}}$

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3 years ago

Read 2 more answers

A new anxiety medication has been manufactured and a study is being conducted to determine whether its effectiveness depends on

Irina18 [472]

The test statistics is used to determine if the anxiety medication can happen under a null hypothesis

The test statistics that is an appropriate hypothesis test is $z =\frac{0.35 - 0.40}{\sqrt{\frac{0.35(1 - 0.35)}{60} + \frac{0.40(1 - 0.40)}{85}}}$

<h3>How to determine the test statistic</h3>

<u>40 milligrams of medication</u>

Patients = 60

Lower stress level patients = 21

The mean of this medication is:

$\bar x = \frac{x}{n}$

So, we have:

$\bar x_1 = \frac{21}{60}$

$\bar x_1 = 0.35$

<u>75 milligrams of medication</u>

Patients = 85

Lower stress level patients = 34

The mean of this medication is:

$\bar x = \frac{x}{n}$

So, we have:

$\bar x_2 = \frac{34}{85}$

$\bar x_2 =0.4$

The test statistic is then calculated as:

$z =\frac{\bar x_1 - \bar x_2}{\sqrt{\frac{\bar x_1(1 - \bar x_1)}{n_1} + \frac{\bar x_2(1 - \bar x_2)}{n_2}}}$

The equation becomes

$z =\frac{0.35 - 0.40}{\sqrt{\frac{0.35(1 - 0.35)}{60} + \frac{0.40(1 - 0.40)}{85}}}$

Hence, the test statistics that is an appropriate hypothesis test is $z =\frac{0.35 - 0.40}{\sqrt{\frac{0.35(1 - 0.35)}{60} + \frac{0.40(1 - 0.40)}{85}}}$

Read more about test statistic at:

brainly.com/question/15980493

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2 years ago

What is the area and perimeter?

luda_lava [24]

Answer:

Perimeter: 26 units

Area: 24 units²

Step-by-step explanation:

12 + 9 + 5 = 26

A = 1/2BH