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cupoosta [38]
2 years ago
5

Find the mean of each data set. 1.9, 10, 11, 16, 12, 12,14

Mathematics
2 answers:
Sergeeva-Olga [200]2 years ago
7 0

Answer:

10.9857142857 ≈ 10.99

Step-by-step explanation:

To calculate the mean you have to:

1. add up all the numbers

2. divide the sum by the number of values there are in the data set

igor_vitrenko [27]2 years ago
6 0

Answer:

Add all the values up and divide by 7 ( as there are 7 values in the data set)

Step-by-step explanation:

1.9 + 10 + 11 + 16 + 12 + 12 + 14 = 76.9

If you divide by 7, you will get 10.9857142857.

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The quantities X and Y are proportional find the constant of proportionality (r) in the equation y=Rx
Juliette [100K]

Answer:

y/x = R

Step-by-step explanation:

The two quantities x and y are proportional means they have a relation.

The equation is;

y= Rx ------to find the proportional R you make R the subject of the formula;

y/ x = R

4 0
2 years ago
Read 2 more answers
Franco read 3/8 of a chapter of his history book in 1/5 of an hour. At this rate, how many chapters of his history book can he r
Irina18 [472]

He can read 1\frac{7}{8} chapters of his history book in 1 hour.

<em><u>Explanation</u></em>

Franco read 3/8 of a chapter of his history book in 1/5 of an hour.

Suppose, he can read x chapters of his book in 1 hour at this rate.

So, the equation according to the <u>ratio of 'the chapter to the time'</u> will be....

\frac{x}{1}= \frac{\frac{3}{8}}{\frac{1}{5}}\\ \\ \frac{x}{1}=\frac{3}{8}*\frac{5}{1}\\ \\ \frac{x}{1}=\frac{15}{8} \\ \\ x= \frac{15}{8}= 1\frac{7}{8}

So, he can read 1\frac{7}{8} chapters of his history book in 1 hour.

6 0
3 years ago
Barry used a number line to simplify a numerical expression on a math test.
gavmur [86]

Answer:

i think its 14 if the number starts all the way at -10 youd have to add 14 to get to four

3 0
3 years ago
22
marysya [2.9K]
12 meters a second so the answer is D
7 0
3 years ago
The lodge at the Three Lakes Resort is offering the following two options for a holiday weekend.
ollegr [7]
X - the cost of one night´s lodging
y - the cost of a meal
3 x + 6 y = 132
3 x + 2 y = 109 /  * (-1)
-----------------------------
 3 x + 6 y =   132
-3 x  - 2 y = - 109
-----------------------
          4 y = 23
             y = 5.75
3 x + 34.50 = 132
3 x = 97.50
x = 97.50 : 3
x = $32.50
The cost of one night´s lodging is $32.50.
8 0
3 years ago
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