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ELEN [110]
3 years ago
6

18. A new truck costs $32,000. The car’s value will depreciate over time, which means it will lose value. For tax purposes, depr

eciation is usually calculated linearly. If the truck is worth $24,500 after three years, write an explicit formula for the value of the car after n years.
Mathematics
1 answer:
Vlad [161]3 years ago
8 0
The answer is 2,500

32,000 - 24,500 /3
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Answer:

Step-by-step explanation:

I attached a graph.

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2 years ago
If y=15 when x=5, find y when x=7, given that y varies directly with x.
Oxana [17]

Answer:

when x = 7, y = 21

Step-by-step explanation:

This is about direct variation. If y varies directly with x, then there is a constant  factor of variation, k. The constant of variation can be found by ʸ⁄ₓ

k = ʸ⁄ₓ

k = ¹⁵⁄₅ = 3

Now that we have found k, we simply multiply x by it to find y (this is because y is directly proportional to x). We plug in our x = 7 to find y at this point.

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3 years ago
$18 less than the original price is $48.<br><br> HELP!!
mihalych1998 [28]

Answer:

i believe itd be 66 dollars :D

hope this helps !!

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4 0
3 years ago
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serious [3.7K]
The answer is 13.

Because this is a kite, the diagonals intersect perpendicularly or with a 90° angle.

In the triangle DIC, which is a right triangle, the legs are 5 and 12. To find the hypotenuse, we use Pythogarean theorem:
{a}^{2}  +  {b}^{2}  =  {c}^{2}
Plug in the givens:
{5}^{2}  +  {12}^{2}  =  {c}^{2}
Take the squares:
25 + 144 = 169  =  {c}^{2}
Take the square root of both sides:
\sqrt{169}  =   \sqrt{ {c}^{2} }  \\  \\ c = 13
We find the line segment DC. In the question it says "BD = DC". So BD is equal to 13.
5 0
3 years ago
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