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Rom4ik [11]
3 years ago
9

Dan is making quilts for sewing class. He will use 22 yards of yellow fabric, 11.2 yards of green fabric, and 25.3 yards of blue

fabric. This amount makes 26 quilts. How many yards are used for each quilt?
Mathematics
1 answer:
Aneli [31]3 years ago
7 0

Answer:

2.25 yards per quilt

Step-by-step explanation:

if you add up all the numbers u get 58.5. then divide this by 26 to get 2.25

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Y + 2x = 5 I have to solve for Y please
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Answer:

Y=5-2X

Step-by-step explanation:

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Jane is getting ready to attend college next year. She's thinking about ways to pay for it. Which of these is the best first ste
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Weekly demand for a particular item averages 30 units, with a standard deviation of 4. This item is managed with a fixed-order-i
aivan3 [116]

Answer:

(B)93

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Since we are using a fixed-order-interval model,

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4 0
3 years ago
8 times what equals 40
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At 13% significance level, there isn't enough evidence to prove the administrators to claim that the mean score for the​ state's eighth graders on this exam is more than 280.

<h3>How to state hypothesis conclusion?</h3>

We are given;

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population standard deviation σ = 37

Sample Mean; x' = 280

Population mean; μ = 287

The school administrator declares that mean score is more (bigger than) 280. Thus, the hypotheses is stated as;

Null hypothesis; H₀: μ > 280

Alternative hypothesis; Hₐ: μ < 280

This is a one tail test with significance level of α  = 0.13

From online tables, the critical value at α  = 0.13 is z(c) = -1.13

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z = (x-  μ)/(σ/√n)

z = ((280 - 287) *√78 )/37

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P[ z > 280 ] =  0.048

d) The value for z = -1.67  is smaller than the critical value mentioned in problem statement z(c) = - 1.13  , the z(s) is in the rejection zone. Therefore we reject H₀

e) We conclude that at 13% significance level, there isn't enough evidence to prove the administrators to claim that the mean score for the​ state's eighth graders on this exam is more than 280.

Read more about Hypothesis Conclusion at; brainly.com/question/15980493

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