21+-3 so 18 to 24 is the answer
The number if 18-year old 12-year old students that took part in the survey is 320.
- The number of more 18-year old students than 12-year old students that spent between 25 and 35 mins on social media is 20.
<h3>What is the survey about?</h3>
Looking at the survey chart one can see that the total number of 18year old that partook of the survey are:
30 + 20 + 60 + 70 + 40 + 60 + 40
= 340
From the diagram , 18 year old = 60
12 year old = 40
The differences will be:
= 60 - 40
= 20
Therefore, The number if 18-year old 12-year old students that took part in the survey is 320 and the number of more 18-year old students than 12-year old students that spent between 25 and 35 mins on social media is 20.
Learn more about social media from
brainly.com/question/16180558
#SPJ1
Hope this helps bye bye thanks
Answer:
-x² + 2x - 3
Step-by-step explanation:
Simply combine like terms together.
x² terms are added together
x terms are added together
Constants are added together
Answer:
⅙
Step-by-step explanation:
it could be 6 and 1, 5 and 2, 4 and 3, 3 and 4, 2 and 5 or 1 and 6.
It is 2 fair dice, so all together, the probability is 36.
6/36 can be simplified to ⅙
