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3 years ago

Does anyone know how to turn a fraaction percent into a decimal like this:

Mathematics

1 answer:

lilavasa [31]3 years ago

4 0

3 divided by 8 and 17 divided by 30

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There are 640 calories in 4 scoops of ice cream. At this rate, how many calories would there be in 9 scoops of ice cream?

lapo4ka [179]

Answer:

1,440 calories

Step-by-step explanation:

Divide 640 by 4 to get how many calories there are per scoop.

640 calories ÷ 4 scoops = 160 calories per scoop

Then, we can multiple 160 by 9 to get the calories in 9 scoops.

160 calories per scoop × 9 scoops = 1,440 calories per 9 scoops

7 0

3 years ago

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A geologist examines 6 seawater samples for lead concentration. The mean lead concentration for the sample data is 0.903 cc/cubi

Gnesinka [82]

Answer:

Step-by-step explanation:

We want to determine a 95% confidence interval for the mean lead concentration of sea water samples

Number of samples. n = 6

Mean, u = 0.903 cc/cubic meter

Standard deviation, s = 0.0566

For a confidence level of 95%, the corresponding z value is 1.96. This is determined from the normal distribution table.

We will apply the formula

Confidence interval

= mean +/- z ×standard deviation/√n

It becomes

0.903 +/- 1.96 × 0.0566/√6

= 0.903 +/- 1.96 × 0.0566/2.44948974278

= 0.903 +/- 0.045

The lower end of the confidence interval is 0.903 - 0.045 =0.858

The upper end of the confidence interval is 0.903 + 0.045 =0.948

Therefore, with 95% confidence interval, the mean lead concentration of the sea water is between 0.858 cc/cubic meter and 0.948 cc/cubic meter

7 0

3 years ago

Pls help me^^

natita [175]

Answer:

24 ounces of butter

21 ounces of sugar

30 ounces of flour

12 eggs

3 teaspoon of baking powder

Step-by-step explanation:

Simple. All you had to do was multiply each quantity by 3, because you needed 3 lots of each.

Hope this helps.

6 0

3 years ago

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HELP ME PLEASE !!!!!!!!

dusya [7]

Answer:

£11407

Step-by-step explanation:

8500×5.7/100×6=x+8500

Brainliest would be appreciated :))

5 0

3 years ago

60:92=105:n what is n?

PIT_PIT [208]

Hey! I'll provide you the answers!

First you want to simplify the equation using cross-multiplication.

$15n = 2415$

Finally, you would want to divide both sides by 15.

n = 161

5 0

3 years ago

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