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3 years ago

If there was 17 boys and21 girls what would be the ratio

Mathematics

1 answer:

Lady bird [3.3K]3 years ago

8 0

17 boys to 21 girls
17 boys/21 girls
17 boys:21 girls

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A plane is flying at the height of 5000 meter above the sea level. at a particular point, it is excatly above a submarine floati

AnnyKZ [126]

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3800 meters

Step-by-step explanation:

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3 years ago

Which equations model this problem? A recipe that makes 1 serving calls for 0.1 L of honey. How many servings can Alicia make if

loris [4]

The answer is B. 0.8/0.1 = s

The solution is as follows:
s = honey at hand / honey needed for 1 serving
= 0.8 L / 0.1 L
= 8, she can make 8 servings of the recipe

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3 years ago

Lin ran 29 meters in 10 seconds. she ran at a constant speed. At this rate, how far can she run in 1 minute

scoundrel [369]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Find the standard deviation of 21, 31, 26, 24, 28, 26

Vesnalui [34]

Given the dataset

$x = \{21,\ 31,\ 26,\ 24,\ 28,\ 26\}$

We start by computing the average:

$\overline{x} = \dfrac{21+31+26+24+28+26}{6}=\dfrac{156}{6}=26$

We compute the difference bewteen each element and the average:

$x-\overline{x} = \{-6,\ 5,\ 0,\ -2,\ 2,\ 0\}$

We square those differences:

$(x-\overline{x})^2 = \{36,\ 25,\ 0,\ 4,\ 4,\ 0\}$

And take the average of those squared differences: we sum them

$\displaystyle \sum_{i=1}^n (x-\overline{x})^2=36+25+4+4+0+0=69$

And we divide by the number of elements:

$\displaystyle \sigma^2=\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n} = \dfrac{69}{6} = 11.5$

Finally, we take the square root of this quantity and we have the standard deviation:

$\displaystyle\sigma = \sqrt{\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n}} = \sqrt{11.5}\approx 3.39$

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3 years ago

a three and a half gallon gas can contains nine tenths of a gallon how much more gas can be poured in

vovangra [49]

The answer in simplest form would be 2 and 3 fifths gallons of gas.

6 0

3 years ago