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spayn [35]
3 years ago
12

Question attached! Please explain how you got them :)

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
8 0
A) Mean - add numbers of animals,  and then divide by the number of students.

numbers of animals =1*20+2*11+3*18+4*10+5*3 +6*18 = 259
number of students = 20+20+11+18+10+3+18 = 100
mean=numbers of animals /number of students = 259 / 100=2.59

b) median
You can write 20 zeroes, 20 ones, 11 twos and so on. and the remove from left and right equal amount of number, when you get in the middle,it is going to be median
<u>20  "0", 20  "1", 11  "2"</u>,          <u>18  "3", 10 "4", 5  "3", 18 "6"
</u>      51 place                                       51 place
 From the left 20+20+11=51 places
18+5+10+18=51 places 
We can see that no single middle number. In the middle is going to be two numbers 2 and 3, and divide them by 2.     
(2+3)/2=2.5  median

3) (127/151)*100%≈ 84.11%


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3 years ago
1. Write the solution set in interval notation: 3x-2 &gt; x-4 or 7x-5 &lt; 3x+3
Yakvenalex [24]
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Read 2 more answers
Which operations will ALWAYS result in an irrational number?
kupik [55]

Answer: Math isnt my thing buttttt

Its R+R its right on ed

Step-by-step explanation:

8 0
3 years ago
2. The difference of twice a number and 8 is 12.​
zzz [600]

Step-by-step explanation:

Let x be the number. If the question is 2x-8, the answer is 10. If the question is 8-2x, the answer is -2. The answer is probably 10, though. The larger number is usually given first.

6 0
3 years ago
Find the value of x?
Burka [1]

Answer:

<em>We </em><em>know </em><em>that </em><em>the </em><em>exterior </em><em>angle </em><em>of </em><em>a </em><em>triangle </em><em>is </em><em>equal </em><em>to </em><em>the </em><em>sum </em><em>of </em><em>two </em><em>opposite</em><em> </em><em>interior </em><em>angle. </em>

Step-by-step explanation:

So

25x + 57 + x = 45x

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57 = 45x - 26x

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Therefore x = 3

Hope it will help you

3 0
3 years ago
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