Answer:
97
Step-by-step explanation:
81 + 93 + 76 + 78 + 97 = 425
425/5 = 85
As an overview, an arithmetic series has a common difference (d) while a geometric series has a common ratio (r). Common difference is calculated by subtracting two consecutive numbers. Common ratio is calculates by dividing two consecutive numbers.
1.) Geometric series (r = 1/2)
2.) Neither
3.) d = 3
19 - 16 = 3; 22 - 19 = 3; 25 - 22 = 3
4.) d = 2.8
5.8 - 3 = 2.8; 8.6 - 5.8 = 2.8; 11.4 - 8.6 = 2.8
5.) r = 4
24/6 = 4; 96/24 = 4; 384/96 = 4
6.) r = 4
12/3 = 4
The insurance company pays 80% of $4,400:
0.8*4400 = $3520
Therefor the amount Marge pays is 4400 - 3520 = $880
Note however that $4400 is the cost of annual group insurance, so to find how much she pays monthly we need to divide the amount she pays in one year by 12:
880/12 = $73.33 (correct to two decimal places)
Answer:
A. -4 and 4
B. No solution.
Step-by-step explanation:
The given equation is
A.
Equate the denominators equal to 0 to find the restrictions on the variable.
Therefore, 
.
B.
We have,
Multiply both sides by (x-4)(x+4).
Add 4 on both sides.
Divide both sides by 5.
Here the solution is x=4 but it is the restricted value.
Therefore, the given equation has no solution.
