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3 years ago

You can walk 1 1/2 miles in 1/2 hour what is your average speed

Mathematics

2 answers:

evablogger [386]3 years ago

8 0

Let’s turn the mixed number into a fraction
3/2 x 1/2
Multiply across
3/4
Hope this helps!

LUCKY_DIMON [66]3 years ago

6 0

You are walking a 3 mills per hour

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Digiron [165]

Answer:

yes, the student who has 8 pets.

Step-by-step explanation:

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3 years ago

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the performance score of 10 adults is recorded, and the results are 83 87 90 92 93 100 104 111 115 121 find the standard deviati

luda_lava [24]

Answer:

The standard deviation of the data set is $\sigma = 12.7906$ .

Step-by-step explanation:

The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma)

To find the standard deviation of the following data set

$\begin{array}{cccccccc}83&87&90&92&93&100&104&111\\115&121&&&&&&\end{array}$

we use the following formula

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} }$

Step 1: Find the mean $\left( \overline{X} \right)$ .

The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}$

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}=\frac{83+87+90+92+93+100+104+111+115+121}{10} \\\\Mean = \frac{996}{10} =\frac{498}{5}=99.6$

Step 2: Create the below table.

Step 3: Find the sum of numbers in the last column to get.

$\sum{\left(x_i - \overline{X}\right)^2} = 1472.4$

Step 4: Calculate σ using the above formula.

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} } = \sqrt{ \frac{ 1472.4 }{ 10 - 1} } \approx 12.7906$

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3 years ago

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36 inches is the answer. GOOD LUCK WITH UR ASSIGNMENT

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Answer:

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3 years ago

A large bucket of 200 golf balls is divided into 4 smaller buckets. How many golf balls are in each small bucket?

elena-14-01-66 [18.8K]

Answer:

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Step-by-step explanation:

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To check the answer you do 50 times four.

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