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vova2212 [387]
3 years ago
8

the bake star bakery uses 2 1/4 cups of raisins to make r serveings of trail mix. how many cups of raisins are in each serving

Mathematics
1 answer:
Zigmanuir [339]3 years ago
4 0
You have to divide the number of cups by the number of raisins
4/2(1/4)=19/9 pr 1.77777778

please give me the best answer xoxo  <span />
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gtnhenbr [62]

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Step-by-step explanation: Hope this helped )(-:

7 0
3 years ago
The Millivanil Cinema sold 150 tickets to a movie. Some of these were
yuradex [85]

Answer:

<h3>a)a+c=150,10.25a+7.75c=1470</h3>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • system of linear equation
<h3>let's solve:</h3>

according to the first condition

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according to the second condition

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8 0
2 years ago
1. A sample consists of 75 TV sets purchased several years ago. The replacement times of those TV sets have a mean of 8.2 years.
Greeley [361]

Answer:

8.2+/-0.25

= ( 7.95, 8.45) years

the 95% confidence interval (a,b) = (7.95, 8.45) years

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 8.2 years

Standard deviation r = 1.1 years

Number of samples n = 75

Confidence interval = 95%

z value(at 95% confidence) = 1.96

Substituting the values we have;

8.2+/-1.96(1.1/√75)

8.2+/-1.96(0.127017059221)

8.2+/-0.248953436074

8.2+/-0.25

= ( 7.95, 8.45)

Therefore the 95% confidence interval (a,b) = (7.95, 8.45) years

3 0
2 years ago
David and Peter had $90 and $200 respectively. They were each given an equal amount of money. Then Peter had twice as much money
Aleksandr [31]
20 dollars each! hope it helps.
4 0
2 years ago
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