Dustin has only nickels and quarters in his piggy bank. He has 49 coins total for a combined value of $8.85. How many of each do
1 answer:
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Answer:
ACV=$4,500
Step-by-step explanation:
We have that the actual cash value (ACV) is defined as:
Where:
actual cash value
replacement cost or purchase price of the item
expected life of the item
current life of the item
Then we have R=$6,000, C=5years, and to find the expected life of the item we can use the depreciating of the roof, then if the roof is depreciating $200 each year we just need to divide $4,000 by $200 to find the expected life of the roof:
Then the espected life of the roof is 20 years, with this result we have all the data, then:
Then the ACV is $4,500
Solving a polynomial inequation
Solving the following inequation:
(x - 8) (x + 1) > 0
We are going to find the sign both parts of the multiplication,
(x - 8) and (x + 1), have when
x < - 8
-8 < x < 1
1 < x
Then we know (x - 8) (x + 1) > 0 whenever (x - 8) (x + 1) is positive
We can see in the figure (x - 8) (x + 1) is positive when x < -8 and x > 1
Then
Answer:B