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adell [148]
2 years ago
10

Jim uses ribbon to make bookmarks. Jim has 9 feet of ribbon, He uses 1/3 foot of ribbon to make each bookmark.

Mathematics
1 answer:
stellarik [79]2 years ago
7 0
The answer to this is 27 ribbons bc first u have to convert 9 feet to inches which is 12*9=108in. Then since he uses 1/3 foot of ribbon to make each book mark ( u would know that 1/3 of a feet is 4 inches ) so u divided 108 by 4 which is 27 ribbons!!!! : )
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dezoksy [38]

Answer: The margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.

Step-by-step explanation:

Since we have given that

Sample size = 400

Mean = $357.75

Standard deviation = $37.89

At 95% confidence level, z = 1.96

We first find the margin of error.

Margin of error is given by

z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1.96\times \dfrac{37.89}{\sqrt{400}}\\\\=3.71

95% confidence interval would be

\bar{x}\pm \text{margin of error}\\\\=357.75\pm 3.71\\\\=(357.75-3.71,357.75+3.71)\\\\=(354.04,361.46)

Hence, the margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.

7 0
2 years ago
In Andrew’s Furniture Shop, he builds bookshelves and tables. Each type of furniture takes him about the same time to make. He f
Paul [167]
A. You may set the variables in either order. But for argument sake, let's set as follows:

x = Amount of bookshelves
y = Amount of tables

B. Because of the amount of things you need to make, the following is an inequality using those variables.

x + y > 25

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C. By solving the system and looking at basic constraints when graphed, you can see the feasible region has 4 vertices. 

(0,0)
(18, 7)
(0, 15)
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8 0
2 years ago
Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. if p(z &gt;
madreJ [45]
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1.23=(c-0)/1
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8 0
2 years ago
an auto transport truck holds 12 cars. A car dealer plans to bring in 1006 new cars in June and July. if an auto transport truck
allochka39001 [22]

divide 1006 by 12

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5 0
2 years ago
Read 2 more answers
. Leslie is blowing up one of her favorite photographs to hang on her wall. If the photo's original length and height were 8 inc
Katena32 [7]

Answer:

L_2 = 2\frac{2}{15}\ ft

Step-by-step explanation:

Given

Original

Length(L_1) = 8\ in

Height (H_1) = 15\ in

New

Height (H_2) = 4\ ft

Required

Determine the new length (L2)

Since the original photographs was blown up; the original and the new photographs would have the same ratio

i.e.

Ratio = L_1 : H_1

and

Ratio = L_2 : H_2

Equate both ratios

L_1 : H_1 = L_2 : H_2

Rewrite as fraction

\frac{L_1}{H_1} = \frac{L_2}{H_2}

Substitute values for L1, H1 and H2

\frac{8}{15} = \frac{L_2}{4}

Multiply both sides by 4

4 * \frac{8}{15} = \frac{L_2}{4} * 4

4 * \frac{8}{15} = L_2

\frac{4 * 8}{15} = L_2

\frac{32}{15} = L_2

2\frac{2}{15} = L_2

L_2 = 2\frac{2}{15}\ ft

The new length must be 2\frac{2}{15}\ ft

7 0
2 years ago
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