Two different age groups were surveyed about
the amount of time they spent on social media.
T...
![subject](/tpl/images/cats/mat.png)
Mathematics, 09.02.2021 14:00 joannakawata6
Two different age groups were surveyed about
the amount of time they spent on social media.
The results are shown on the two frequency
polygons below. The same time intervals were
used for both graphs.
a) How many 18-year old
students took part in
the survey?
12-year old students
18-year old students
+
80+
70
60
50
940
30
20
801
70
60
50
740
Frequency
L 30
b) How many more 18-year
old students than 12-year
old students spent
between 25 and 35 mins
on social media?
20
10
10
0
0 10 20 30 40 50 60 70 80
Time (mins)
0
0 10 20 30 40 50 60 70 80
Time (mins)
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:20, sweetbri7p5v6tn
Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a. x2 − 4x − 7 = 0b. 4r2 + 11r − 3 = 0c. 3m2 + 7 = 0d. t2 + 2t + 1 = 0
Answers: 1
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00, davidcortez27
Need match the functions with correct transformation. f(x) = -3x f(x) = |x-1|+3 f(x) = √(x+3) 1/2x² f(x) = (x+1)²-3 4|x| 1. compress by a factor of 1/2 2. stretch by a factor of 4 3. shift to the left 3 4. shift to the left 1 5. shift up 3 6. reflection
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:50, iiMxlissaii
Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm. it decreased by the same amount each year. what was the change in grandpa ernie's height each year
Answers: 2
You know the right answer?
Questions in other subjects:
![Konu](/tpl/images/cats/es.png)
![Konu](/tpl/images/cats/health.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.11.2020 22:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.11.2020 22:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.11.2020 22:30
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/biologiya.png)
Biology, 24.11.2020 22:30