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Lilit [14]
3 years ago
7

What is negative thirty one over twelve

Mathematics
2 answers:
Vitek1552 [10]3 years ago
6 0
\frac{-31}{12}
Irina18 [472]3 years ago
5 0
Negative thirty over twelve is -2 7/12.
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It takes 3 1/3 kilometers of thread to make 3 1/2 boxes of shirts. How many kilometers of thread will it take to make 6 boxes?
Julli [10]

Answer:

5 5/7 km

Step-by-step explanation:

We assume the length of thread is proportional to the number of boxes of shirts. If L is the thread length required, then that assumption means

... L/(6 boxes) = (3 1/3 km)/(3 1/2 boxes)

Multiplying the equation by (6 boxes), we get

... L = (3 1/3 km)(6/(3 1/2)) = (10/3 km)(6/(7/2))

... = (10/3 km)(12/7) = 40/7 km = 5 5/7 km

7 0
3 years ago
Jon loves to go bird watching at a nearby animal sanctuary. Find the mean of the following numbers of birds he spotted at the sa
DIA [1.3K]

Answer:

Mean = 12

Step-by-step explanation:

The arithmetic mean of a distribution is the sum of the number of samples in the distribution divided by the number of samples in the dataset. It is a measure of central tendency. The mean is represented as follows:

\bar x = \frac{\sum x}{n} \\where\\\bar x = mean\\\sum x = sum\ of\ individual\ terms\\n = number\ of\ terms\\\therefore \bar x = \frac{14\ +\ 10\ +\ 17\ +\ 11\ +\ 9\ +\ 15\ +\ 6\ +\ 14}{8}\\\bar x = \frac{96}{8} \\\bar x = 12

Mean = 12

6 0
3 years ago
In 2010, the population of a city was 119,000. From 2010 to 2015, the population grew by 6.3%. From 2015 to 2020, it fell by 3.7
kaheart [24]

Step-by-step explanation:

population in 2010=119000

population in 2015=11900*1.063=126497

population in 2020=126497*(1 - 0.037)=126491*0.963= 121817

answer=

\frac{121817}{11900}  \times 100

=1.0237%

8 0
3 years ago
Two-fifths of one less than a number is less than three-fifths of one more than that number
lozanna [386]
Hello,

\dfrac{2}{5} *(1-n) \textless\  \dfrac{3}{5} *(1+n)
7 0
3 years ago
!!!!NEED HELP ASAP!!!! NO LINKS OR REPORT
Mariana [72]

Answer:

y = 3x - 5

Step-by-step explanation:

So first take any two points from the graph.

(0, -5), (2, 1)

The slope is \frac{1 + 5}{2 - 0} =3

y = mx + b

b is the y intercept

The y intercept is (0, -5) as this is where the line intersects the y axis.

y = 3x - 5

3 0
3 years ago
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