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Aleonysh [2.5K]
1 year ago
15

Median mark of 1,2,3,4,5,6,7,8 ​

Mathematics
2 answers:
kvv77 [185]1 year ago
8 0
4.5 because 4+5 = a / 2 = 4.5
telo118 [61]1 year ago
4 0

Answer:

4.5

Step-by-step explanation:

1+2+3+4+5+6+7+8= 36

36/8= 4.5

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Your friend is wrapping 1 meter of twine around a spool with a 2-centimeter diameter. The spool is thin and accommodates only on
Kazeer [188]

Answer:

a) 6 complete times

b) 19.3%

Step-by-step explanation:

In every turn, the diameter of the twine increases 1 cm.

After the first turn, there is a total wrapped of 3.14*2=6.3 cm.

After the second turn, we have wrapped 6.3+3.14*(2+1)=15.7 cm.

If we continue with these algorithm, we have that after the 6th turn we have 84.8 cm wrapped. <em>This is the last complete turn.</em>

T = 0 D = 2 cm. Wrapped = 6.3 cm. Total wrapped = 6.3 cm.

T = 1         D = 3 cm. Wrapped = 9.4 cm. Total wrapped = 15.7 cm.

T = 2 D = 4 cm. Wrapped = 12.6 cm. Total wrapped = 28.3 cm.

T = 3 D = 5 cm. Wrapped = 15.7 cm. Total wrapped = 44 cm.

T = 4 D = 6 cm. Wrapped = 18.8 cm. Total wrapped = 62.8 cm.

T = 5 D = 7 cm. Wrapped = 22.0 cm. Total wrapped = 84.8 cm.

T = 6 D = 8 cm. Wrapped = 25.1 cm. Total wrapped = 110 cm.

There are left (100-84.8) = 15.2 cm to wrap around the twine, which has a 25.1 cm diameter by now.

The perimeter of the twine is 3.14*25.1=78.8 cm.

The percentage of a complete circle that the last wrapping of the twine will make is:

P = 15.2/78.8 = 0.193 = 19.3%

4 0
3 years ago
-5+7q+ -5q+ -9q please help
vekshin1

For this case we must simplify the following expression

-5 + 7q + (- 5q) + (- 9q)

We know that, by definition:

+ * - = -

So, rewriting the expression we have:

-5 + 7q-5q-9q =

We add similar terms taking into account that:

  • Equal signs are added and the same sign is placed.
  • Different signs are subtracted and the major's sign is placed:

-5 + 2q-9q =\\-5-7q

Answer:

-5-7q

5 0
3 years ago
9+6x=24<br> Solve for inequalities
katrin2010 [14]
X= 5 divided by 2. Subtract the 9 from the 24 and divide by the 6.
3 0
3 years ago
Read 2 more answers
Write an equivalent expression for the following by combining like terms: 4y − y + 7y
Assoli18 [71]
4y - y + 7y

4y - y = 3y

3y + 7y = 10y

10y is your answer

hope this helps
4 0
3 years ago
Which statement explains why the value of [2.4] is 2 but the value of [-2.4] is –3?
GenaCL600 [577]
For any x in Real numbers, [x] is the greatest possible integer smaller than x, or equal to x if x is an integer.

According to this,

<span>[2.4] is the greatest integer , smaller than or equal to (so non greater) 2.4. This number is 2

similarly,  </span>[-2.4] is the greatest integer , smaller than or equal to (so non greater) -2.4. This number is -3.


Answer: 

A) <span>Because 2 is the greatest integer not greater than 2.4 and –3 is the greatest integer not greater than –2.4. </span>
3 0
3 years ago
Read 2 more answers
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