Answer:
In the given figure:
The reflex angle 
and 
[By vertical angle theorem]
From the given we can say that:
and 
are supplementary angles.
Supplementary angles states that the two measure are add up to 180 degree.
⇒ 
.....[1]
then; the reflex angle DOB is:
Substitute the given values we get;
Subtract y from both sides we get;
Divide both sides by 2.5 we get;
We have to find the non reflex 
Non reflex angle DOB is;
Therefore, the non-reflex angle DOB is 108 degree.
Answer:
Part A: 20 students
Part B: 4 hours
Step-by-step explanation:
Part A:
To find the number of students surveyed, we count the number of x there are in the graph.
students = 1 + 2 + 3 + 5 + 1 + 1 + 3 + 2 + 2 = 20
Part B:
To find the mean, we need to find the total number of hours volunteered first.
hours = 1x0 + 2x1 + 3x3 + 5x3 + 1x4 + 1x5 + 3x6 + 2x7 + 2x8 = 80
Now, we can find the mean. We divide the total number of hours volunteered by the number of students.
Mean = 80 ÷ 20 = 4
Answer:
7-4g
Step-by-step explanation:
let the number =g
four times the number = 4×g = 4g
seven decreased br four times the number= 7- 4g
therefore, the answer = 7-4g
Answer:
20
Step-by-step explanation:
You can take a 0 off of 100.
10/5=2
Add the 0 back to the end
20 is your answer.
Let us assume the amount of baskets Joe scored = x baskets.
4 times of x is 4x.
4x+x = 5x.
Therefore, Peter scored = 5x.
Together they scored = 32 baskets.
Sum of Peter score and Joe score = 32.
x+5x = 32.
6x = 32.
Dividing both sides by 6, we get
x = 32/6
= 16/3.
x= 16/3.
<h3>Joe scored = 16/3 baskets.</h3><h3>Peter scored = 5 × 16/3 = 80/3 baskets.</h3>
