Answer:
6) x = 40.5
8) x = 16.5
Step-by-step explanation:
6) 45/x = 20/18
simplify and cross-multiply to get:
45/x = 10/9
10x = 405
x = 40.5
8) 22/8 = x/6
11/4 = x/6
4x = 66
x = 33/2
x = 16.5
Answer:
-a - 8
Step-by-step explanation:
2a - 5 - (3a + 3)
2a - 5 - 3a - 3
-a - 8
I hope this helps!
Answer:
For example, if you wish to find the average grade on a test for your class but one student fell asleep and scored a 0, the mean would show a much lower average because of one low grade, while the median would show how the middle group of students scored.
Step-by-step explanation:
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Answer:
Part 5) 
Part 6) The ratio between the circumference and diameter of a circle, is equal to the number π
Step-by-step explanation:
<u><em>The questions in the attached figure</em></u>
Part 5)
we know that
The circumference of a circle is equal to

where
D is the diameter
we have

substitute


Part 6) What is the ratio between the circumference and diameter of a circle?
we know that
The circumference of a circle is equal to

where
D is the diameter
so
The ratio between the circumference and diameter of a circle, is equal to divide the circumference by the diameter
