what is the equivalent present amount of an eight year series of decreasing amaounts if the interest rate is 10% compounded annually, the first year amount is $20,000, and the rate of decrease is $800 per year

$93,876

Explanation:

The equivalent present amount of an 8year series of decreasing amounts when the interest rate is 10% compounded annually, the first year amount is $20,000, and the rate of decrease is $800 per year will be calculated thus:

PV = C / (1+r) ^ t

= 20,000/1.1 + 19,200/1.1² + 18,400/1.1³ + 17,600/1.1⁴ +16,800/1.1^5 + 16,000/1.1^6 + 15,200/1.1^7 + 14,400/1.1^8

= $93,876

Therefore, the equivalent present value is $93,876.

answer; ///i believe the correct answer is (350); (c) is your answer

hi : ) i found this so i hope this !

"we first find value of tax in dollars.

the difference between the two prices   is: 23. 54 - 22 = 1.54

therefore the sales tax in dollars is 1.54

the tax % will be   (amount of tax / original cost price ) × 100

(1.54 / 22) × 100  → (0.07) × 100 =   7

so the tax rate is 7%

we can double check the answer.

7 % of 22   → (7/100) × 22 → 0.07 × 22 = 1.54

22 + 1.54 = 23.54"