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2 years ago

Juanita has 16 model cars and 48 model trains. What is the ratio of the wmber of trains to the member of cars?

Mathematics

1 answer:

svetoff [14.1K]2 years ago

6 0

Answer:

1:3

Step-by-step explanation:

but thats not and answer

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Customer account numbers for a certain company consists of 3 letters followed by 5 numbers how many different account numbers ar

Arturiano [62]

Answer:

1,757,600,000

Step-by-step explanation:

company consists of 3 letters followed by 5 numbers how many different account numbers are possible if repetitions of letters and digits are allowed.

We have 26 lettrs and 10 digits

So, the possible out comes for each one of the letters = 26

And the possible out comes for each one of the numbers = 10

∵ repetitions of letters and digits are allowed.

So, the possible accounts are = 26³ * 10⁵ = 1,757,600,000

5 0

3 years ago

How can I find the volume of this prism? Helpp

Alex

Answer:

152.971

Step-by-step explanation:

i think thats the answer but sorry if its not.

5 0

2 years ago

Erin caught 8 more fish than Juan caught

Gennadij [26K]

Answer:

Second option: Equation, because 8 plus the fish that Juan caught equals the fish that Erin caught

Step-by-step explanation:

You can for sure make an equation, all you need is to have variables and that's allowed in this case.

E=J+8

E=Erin J=Juan

7 0

3 years ago

It is thought that not as many Americans buy presents to celebrate Valentine's Day anymore. A random sample of 40 Americans yiel

evablogger [386]

Answer:

98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day

(0.3672 , 0.7328)

Step-by-step explanation:

Explanation:-

Given Random sample size n =40

Sample proportion

$p = \frac{x}{n} = \frac{22}{40} = 0.55$

98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day

$(p-Z_{\alpha } \sqrt{\frac{pq}{n} } , p + Z_{\alpha } \sqrt{\frac{pq}{n} } )$

The Z-value Z₀.₉₈ = Z₀.₀₂ = 2.326

98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day

$(0.55-2.326\sqrt{\frac{0.55 X0.45}{40} } , 0.55 + 2.326\sqrt{\frac{0.55 X0.45}{40} } )$

( 0.55 - 0.1828 , 0.55 + 0.1828)

(0.3672 , 0.7328)

6 0

3 years ago

Read 2 more answers

A number plus 17 is 25 algebraic expression

netineya [11]

Answer:

x + 17 = 25

Step-by-step explanation:

im pretty sure you can substitute x with any other letter but ldk

4 0

2 years ago

Read 2 more answers