Answer:
a. x + 64 = 70
b. x = 6
Step-by-step explanation:
Let the fifth number be x.

Adding all the marks and dividing them by the total no. of students to get the average marks.
Avg. marks = (7+8+7+9+6)/5
Avg. marks = 37/5
Avg. marks = 7.4
It is C.8 lines just count how many lines the shape has
Given in the problem is the diameter of the Ferris Wheel.
Thus, we can compute for the Ferris Wheel Circumference. This is the circular distance a single capsule attached to the wheel needs to do a full circle to.
Using 2 Step, we find the rate of how fast the capsule needs to be moving to complete 1 full cycle in 30 minutes.
1. Formula for computing the circumference
C = 2 x π x R
where R = Diameter divided by 2
C = 2π(120/2 )
C = 120π
2. Compute the rate or speed of the capsule / coach.
Rate or Speed = Distance to cover / Time it takes to cover
R/S = 120π/30 = 4π m/min or 12.57737 meters / min
Given:
The sequence is:

To find:
The formula for the nth term in the given sequence.
Solution:
We have,

The given sequence can be written as

The sign are alternative and the absolute value of each term can be defined by the expression
, where n is a natural number.
So, the required formula is:

Therefore, the formula for nth term in the given sequence is
.