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RUDIKE [14]
3 years ago
13

Dan bought a new computer for $900. Each year, the value of the computer decreased by 25% of the previous year's value. At this

rate, what can Dan expect the approximate value of the computer to be after 7 years?
Mathematics
1 answer:
tankabanditka [31]3 years ago
8 0

Answer:

$120.1355

Step-by-step explanation:

We can model this as an exponencial function:

P = Po * (1+r)^t

Where P is the final value, Po is the inicial value, r is the rate and t is the amount of time.

For this case, we have that Po = 900, r = -25% = -0.25 and t = 7, so we can find the value of P

P = 900 * (1 - 0.25)^7 = $120.1355

The price after 7 years will be $120.1355.

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From a distance of 20 meters, from its base, the angle of elevation of the top of a building is 32 degrees. Find the height of t
Strike441 [17]

TAN(32°) = x/20 --> x = 12.50 m

4 0
3 years ago
The first number in a pattern is 6. The pattern follows the rule "Add 1, Multiply by 2" Which of the following shows the next fo
Morgarella [4.7K]

Answer:

C

Step-by-step explanation:

Remark

You must do the changes in order. Add 1 then multiply by 2

  • First entry: 6
  • Add 1: 6 + 1 = 7
  • Multiply by 2 = 2*7 = 14
  • Add 1: 14 + 1 = 15
  • Multiply by 2: 15 * 2 = 30

Answer: 7 14 15 30

5 0
2 years ago
−4 + [12 × (−8)] – 62
Ymorist [56]

Answer:

-162

Step-by-step explanation:

that the answer

8 0
3 years ago
Read 2 more answers
Solve the following equation to determine the value of x: 3x + (x + 10) + 5x + (2x + 2) = 56
nika2105 [10]

Answer:

I think x = 4.

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3x + x +10 + 5x + 2x + 2 =56

(3x + x + 5x + 2x) + (10 + 2) = 56 (Combine Like Terms)

11x + 12 = 56

11x + 12 = 56

Step 2: Subtract 12 from both sides.

11x + 12 − 12 = 56 − 12

11x = 44

Step 3: Divide both sides by 11.

11x/11 = 44/11

x = 4

7 0
3 years ago
A rectangular park is 150 yards on one side and 125 yards on the other.
Ket [755]
So, there is a rectangular park with longer side (length) 150 yards and shorter side (width) 125 yards.

so walking around the rectangular park once is like covering the Perimeter (p) of the rectangular park.

So, lets find the perimeter of the park.
Perimeter of rectangle = 2 ( l + w)
                                    = 2 ( 150 + 125 )
                                    = 2 * 275
                                    = 550 yards

Now, walking around the park two times is like doubling the Perimeter of the rectangle. So, when Debbie walks around the park 2 times, he covers the perimeter of the rectangular field twice.

i.e. Debbie walked 2 * Perimeter
                               = 2 * 550
                               = 1100 yards

Now, If Debbie wanted to walk 1,000,000 yards, she has to walk the  rectangular park (1,000,000 / the Perimeter of the park)
         i.e.  1,000,000 / 550
             = 1818.18 times

So, 
(a) she walks 1100 yards
(b) She have to walk 1818.18 times
4 0
3 years ago
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