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balu736 [363]
3 years ago
15

There are 12 cookies on the middle shelf. Three-fourths of them have red icing. How many cookies have red icing?

Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
5 0

Answer:

9 have red icing

Step-by-step explanation:

12(3/4)=9

Makovka662 [10]3 years ago
4 0

Answer:

9

Step-by-step explanation:

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nignag [31]

For this problem, the confidence interval is the one we are looking for. Since the confidence level is not given, we assume that it is 95%.

 

The formula for the confidence interval is: mean ± t (α/2)(n-1) * s √1 + 1/n


Where:

<span>
</span>

α= 5%


α/2 = 2.5%


t 0.025, 19 = 2.093 (check t table)


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So plugging in our values:


8.41 ± 2.093 * 0.77 √ 1 + 1/20


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= 8.41 ± 2.093 * 0.789019


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2 years ago
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jeyben [28]

Answer:

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3 years ago
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Monica [59]
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3 erasers cost$4.41 which equation would help determine the cost of 4 erasers is it A , B,C,D,E ? ​
FrozenT [24]

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Step-by-step explanation:

4 and 3 are on the top because they show quantity. And x and $4.41 is on the bottom that is the cost for 3 erasers and x for finding how much 4 erasers cost.

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Step-by-step explanation:

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