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3 years ago

how do you round percent of numbers to the nearest hundredth. to this answer 28 is what percent of 62

Mathematics

1 answer:

fgiga [73]3 years ago

4 0

28÷62. That x 100. around 45.16

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Find the values of the 30th and 90th percentiles of the data. Please show your work.

MaRussiya [10]

Answer:

30th percentile:109

90th percentile: 188

Step-by-step explanation:

The given data set is:

129, 113, 200, 100, 105, 132, 100, 176, 146, 152

We arrange the data set in ascending order to obtain;

Array= $100,100,105,113,129,132,146,176,200$

The 30th percentile is located at

$(\frac{30}{100}\times 10 )}$ -th position, where n=10 is the number of items in the data set

This implies that the 30th percentile is at the 3rd position.

Since 3 is an integer, the 30th percentile is the average of the 3rd and 4th occurrence in the array;

This implies that the 30th percentile = $\frac{105+113}{2}=\frac{218}{2}=109$

The 90th percentile is located at

$(\frac{90}{100}\times 10 )}$ -th position, where n=10 is the number of items in the data set

This implies that the 90th percentile is at the 9th position.

Since 9 is an integer, the 90th percentile is the average of the 9th and 10th occurrence in the array;

This implies that the 90th percentile = $\frac{176+200}{2}=\frac{376}{2}=188$

6 0

3 years ago

Evaluate using the order of operation 3/4+5/6÷2/3

mel-nik [20]

Answer:

two 2

Step-by-step explanation:

First you divide the five over six into the two over three, then you add the quotient of that problem to three over four and the sum is your answer.

3 0

3 years ago

Select all that apply.

jeka94

The answers are It is a quadrilateral and Both pairs of opposite sides are parallel.

Hope this helps.

5 0

3 years ago

Read 2 more answers

What is one important thing you have to do before solving a word problem?

Darina [25.2K]

Answer:

read the answer through and collect all the information you can

7 0

2 years ago

Explain an example of how taking an amount (for example, $20), decreasing it by 40% and then increasing that amount by 40% does

Likurg_2 [28]

Answer:

See below

Step-by-step explanation:

What we can do is try it out.

20*0.6=12

since 0.6 is left

now we increase 12 by 40, or multiply it by 1.4

12*1.4= 16.8

See what is happening here is that at first when we are decreasing it by 40 percent, we are taking 40 percent of 20. However, when we increase that amount by 40 percent, we are now increasing 40 percent of 20 by 40 percent, or increasing 16 by 40 percent. Therefore, we will not get the original amount.

4 0

3 years ago