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Anni [7]
3 years ago
9

.............................................................................

Mathematics
1 answer:
Natasha2012 [34]3 years ago
8 0
There are a lot of dots but do I you have a question



I tried to count them but I kept losing track
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$14.40 for 4.5 pounds of beef
Svetradugi [14.3K]

Answer:

One pound of beef is $3.2

Step-by-step explanation:

14.40 / 4.5

= 3.2

CHECK:

3.2 * 4.5

=14.40

6 0
3 years ago
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7.
Yuki888 [10]

Answer:

the box of cereal weighs 1.32 pounds

Step-by-step explanation:

1 kg = 1000 grams.

.6 kg = 600 grams

1kg=2.2

.6kg = 60% of 2.2

60% of 2.2 = 1.32 pounds

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3 years ago
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How is 12 60% of _? Please Help & Explain the process.
Temka [501]
12 is 60% of 20. You can make 60% into a fraction (60/100) and set that fraction equal to 12/x. You then cross multiply (12*100 and 60*x) to get 1200=60x. You then divide both sides by 60 to get x, which equals 20.

4 0
4 years ago
Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 99​% confidenc
quester [9]

Answer: 18

Step-by-step explanation:

The formula to find the minimum sample size is given by :_

n=(\dfrac{z^*\cdot \sigma}{E})^2

, where \sigma = population standard deviation.

z*= critical z-value.

E= Margin of error.

Given : \sigma= 13

E= ± 8

We know that critical value corresponding to 99% confidence level = z*=2.576  [Using z-table]

Then, the required sample size would be :

n=(\dfrac{(2.576)\cdot (13)}{8})^2

\Rightarrow\ n=(4.186)^2

\Rightarrow\ n=17.522596\approx18 [Round to next integer.]

Hence, the required minimum sample size = 18

4 0
4 years ago
Simplify the expression: 3(q + 11) - 4
Nastasia [14]

Answer:

8

Step-by-step explanation:

6 0
3 years ago
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