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Alex777 [14]
3 years ago
12

Find thе аvеrаgе оf –25, —70, 15, -31, -25, and 40

Mathematics
2 answers:
Anna35 [415]3 years ago
6 0

Answer:

-16

Step-by-step explanation:

Average = sum/n

Sum = -96

Average = -96/6

= -16

egoroff_w [7]3 years ago
3 0

Answer:

-16

Step-by-step explanation:

To find the average, we add up all the numbers and divide by how many numbers there are

(–25+—70+ 15+ -31+ -25+ 40)/6

-96/6

=-16

The average is -16

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What is 78 divided by 3is in long sovision
Xelga [282]
    26
3<span>⟌78
   -6
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6 0
3 years ago
Sarah took the advertising deparſment from her company on a round trip to meet with a potential client. Including Sarah a total
wlad13 [49]

Answer:

Sarah bought 7 coach tickets and 4 first class tickets.

Step-by-step explanation:

From the information provided, you can write the following equations:

x+y=11 (1)

240x+1100y=6080 (2), where:

x is the number of coach tickets

y is the number of first class tickets

In order to find the value of x and y, first you have to solve for x in (1):

x=11-y (3)

Now, you have to replace (3) in (2) and solve for y:

240(11-y)+1100y=6080

2640-240y+1100y=6080

860y=6080-2640

860y=3440

y=3440/860

y=4

Finally, you can replace the value of y in (3) to find the value of x:

x=11-y

x=11-4

x=7

According to this, the answer is that Sarah bought 7 coach tickets and 4 first class tickets.

7 0
3 years ago
If the diameter of a circle is 20 cm, what is the area?
katovenus [111]

Answer:

A = 100 pi cm^2

Step-by-step explanation:

A = pi(r^2)

A = pi(10^2)

A = pi(100)

A = 314.16 '

Convert to pi units.

314.16 ---> 100pi cm^2

3 0
3 years ago
Read 2 more answers
If you flip a coin and roll a 6-sided die, what is the probability that you will flip a tails and roll more than a 3?
pishuonlain [190]
Prob of tails times prob of rolling more than 3
0.5 × 0.5 = 0.25
25%
8 0
3 years ago
Read 2 more answers
Q.Take out the area of the trapezium.<br>Parallel sides-15,23<br>Non parallel sides-10,8​
Dmitriy789 [7]

Answer:

Step-by-step explanation:

Area of a trapezium is the average of the parallel sides times the distance between them.

If we subtract 15 units from each of the parallel sides, we end up with a triangle that has two sides of 8 units and one of 10 units. One of the 8 unit sides is the base and we need to find the height h which is perpendicular to this base.

Let the base be split into two segments, call one A, the other will be 8 - A

From Pythagoras.

10² - A² = h² = 8² - (8 - A)²

10² - A² = 8² - (8 - A)²

100 - A² = 64 - (64 - 16A + A²)

100 - A² = 64 - 64 + 16A - A²

     100  =  16A

         A = 6.25

h = √(10² - 6.25²)

h = √60.9375  

A = ½(15 + 23)√60.9375  

A = 148.31870246... ≈ 148.3 cm²

3 0
3 years ago
Read 2 more answers
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