Answer:
Step-by-step explanation:
divide the number then add on
We can separate the shape into a rectangle and a square
the area of the rectangle :
the area of the square:
the area of the whole shape:
hope this helps
Firstly arrange data from smaller to greater data point:
4 5 6 9 10 11 12 13 15 16
Secondly find the middle value: In our case the number of data is even, so to get the middle value we have to find the mean (average) between 10 & 11, that is 10.5. So the rank of the Median is10.5
Answer:
<u>7</u>
Step-by-step explanation:
The sides are in proportion.
- 35/? = 20/4
- 35/? = 5
- ? = 35/5
- ? = <u>7</u>
Let x be the number of 5 points question.
Let y be the number of 2 points question.
Total number of questions is 38
x + y = 38
Total points is 100
5x + 2y = 100
x + y = 38 ------------- (1)
5x + 2y = 100 ---------(2)
From (1):
x + y = 38
x = 38 - y -------------- sub into (2)
5(38 - y) + 2y = 100
190 - 5y + 2y = 100
3y = 90
y = 30 ------------------ sub into (1)
x + 30 = 38
x = 38 - 30
x = 8
There are 8 5-point questions and 30 2-point questions
