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tester [92]
2 years ago
15

Generate a frequency table for the following data: 3, 12, 25, 2, 3, 6, 17, 17, 15, 13, 20, 12, 21, 18, 19.

Mathematics
2 answers:
netineya [11]2 years ago
8 0
The answer is 5

....
Cerrena [4.2K]2 years ago
4 0

Answer:

5.

Step-by-step explanation:

There are 5 numbers in the data you have listed that are in between the numbers 15-20.

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Extra Credits:
Effectus [21]

Answer:

Missing Number) 55

Property being used) Distributive

Step-by-step explanation:

To find the missing number, just plug in reasonable numbers from the other equation. It is distributive because the 55 is being distributed into everything that is inside the parentheses. If you need more help, comment and I'll be more than glad to assist you! :P

8 0
3 years ago
Find the median and mean of the data. Which reflects the best measure of the center?
Dmitry [639]
Median = 14
Explanation:
Median: is when you find middle number in this set from low > high
12, 13, 13, 14, 21, 22, 23 

Mean = 16
Explanation:
Mean: add all numbers up then divide by how many numbers are there
13 + 14 + 12 +  23 + 22 + 21 / 7 = 16
5 0
3 years ago
Read 2 more answers
Is 19/9 a rational or irrational number
Darya [45]

Answer:

Rational.

Step-by-step explanation:

This is because

19 \div 9 = 2.1111111...

Where the product is a recurring decimal and recurring /repeating decimals are rational.

Hope this helps... :-)

7 0
3 years ago
6x + 2y = -2<br><br> 3x - 2y = -5<br><br> What is the result of adding these two equations?
Volgvan

Answer:

9x = -7

Step-by-step explanation:

adding

7 0
3 years ago
There is a beaker of 3.5% acid solution and a beaker of 6% acid solution in the science lab. Mr. Larson needs 200 milliliters of
oksian1 [2.3K]
Et x = the volume of the 3.5% solution 
<span>Let y = the volume 6% solution </span>

<span>(3.5%)x + (6%)y = (4.5%)(200) </span>
<span>0.035)x + 0.06y = 0.045(200) </span>
<span>0.035x + 0.06y = 9 ( Equation 1 )</span>

<span>x + y = 200 ( Equation 2 )</span>
<span>x = 200 - y </span>

<span>Substitute x = 200 - y into equation 1: </span>
<span>0.035x + 0.06y = 9 </span>
<span>0.035(200 - y) + 0.06y = 9 </span>
<span>7 - 0.035y + 0.06y = 9 </span>
<span>0.06y - 0.035y = 9 - 7 </span>
<span>0.025y = 2 </span>
<span>y = 2/(0.025) </span>
<span>y = 80 mL (the volume of 6% solution.)</span>

<span>Substitute y = 80 into equation 2: </span>
<span>x + y = 200 </span>
<span>x + 80 = 200 </span>
<span>x = 200 - 80 </span>
<span>x = 120 mL (the volume of the 3.5% solution.)</span>

<span>Therefore, Mr. Larson should combine 120 mL of the 3.5% solution </span>
<span>and 80 mL of the 6% solution to make 200 mL of 4.5% solution. </span>

<span>Answer is 120 mL of the 3.5% solution & 80 mL of the 6% solution

Hope I helped :)</span>
5 0
3 years ago
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