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3 years ago

6

14)

2 answers:

liq [111]3 years ago

5 0

The correct answer is C.

If she needs 45 in of white ribbon for each wreath, then she will need close to 4 feet of ribbon for each wreath. This is because 12 in = 1 foot, and 45 divided by 12 is 3.75.

If she's going to be making 18 wreaths, then she will need 3.75 feet of white ribbon for every wreath:

3.75 x 18 = 67.5.

zheka24 [161]3 years ago

4 0

Answer:

The answer is C 70 feet

Step-by-step explanation:

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You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on con

Naddika [18.5K]

Answer:

The sample size is $n = 68$

Step-by-step explanation:

From the question we are told that

The margin of error is $E = 5 \ years$

The standard deviation is $\sigma = 22$

From the question we are told the confidence level is 94% , hence the level of significance is

$\alpha = (100 - 94 ) \%$

=> $\alpha = 0.06$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.881$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2$

=> $n = [\frac{1.881 } * 22 }{5} ] ^2$

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8 0

3 years ago

The equations below represent the numbers y of tickets sold after x weeks for two different local music festivals.

kiruha [24]

Answer:

Part a) 3.5 weeks

Part b) 185 tickets

Step-by-step explanation:

Part a) After how much time have the same number of tickets been sold for both festivals?

Let

x -----> the number of weeks

y ----> the number of tickets sold

we have

<em>Country Music Festival</em>

$y=10x+150$ ----> equation A

<em>Pop Music Festival</em>

$y=20x+115$ ----> equation B

Equate equation A and equation B

$20x+115=10x+150$

solve for x

$20x-10x=150-115$

$10x=35$

$x=3.5\ weeks$

Part b) What is the number of tickets sold at that time?

substitute the value of x=3.5 weeks in the linear equation A or linear equation B

$y=10(3.5)+150$

$y=35+150$

$y=185\ tickets$

6 0

3 years ago

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Nikitich [7]

Answer:

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Step-by-step explanation:

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3 years ago

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labwork [276]

Solve 112 divided by 7 to find the number of muffins in each batch.

7 0

3 years ago

Read 2 more answers

I'll give brainliest to who can answer this!

Kitty [74]

Answer:

the answer is 3

Step-by-step explanation:

6 0

3 years ago