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Arisa [49]
3 years ago
6

The value of a home theater system depreciates by about 7% each year. Aeryn purchases s home theater system for 3000. What is it

s value after 4 years? Round your answer to the nearest hundred
Mathematics
1 answer:
Lady bird [3.3K]3 years ago
4 0
<h3>The value after 4 years is $ 2244.16</h3>

<em><u>Solution:</u></em>

<em><u>The decreasing function is given as:</u></em>

y = a(1-r)^t

Where,

y is final value

a is initial value

r is decreasing rate in decimal

t is number of years

From given,

a = 3000

t = 4 years

r = 7 \% = \frac{7}{100} = 0.07

<em><u>Substituting the values we get,</u></em>

y = 3000(1-0.07)^4\\\\y = 3000 \times 0.93^4\\\\y = 3000 \times 0.74805201\\\\y = 2244.15603\\\\y \approx 2244.16

Thus the value after 4 years is $ 2244.16

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For what value of x is the rational expression below undefined x-4/3x2-75
abruzzese [7]

The given expression is undefined when x = 5 OR x = -5

<h3>Undefined expression </h3>

From the question, we are to determine the value of x for which the given expression is undefined

The given expression is

x-4/3x²-75

An expression is undefined when the denominator equals zero

Thus, the expression is undefined when

3x² - 75 = 0

Now, we will determine the values of x in the equation above

3x² - 75 = 0

3x²  = 75

x² = 75/3

x² = 25

x = ±√25

x = ±5

Hence, the given expression is undefined when x = 5 OR x = -5

Learn more on Undefined expression here: brainly.com/question/19815575

#SPJ1

7 0
2 years ago
the sum of the digits of a two digit number is 7 if the digits are reversed the new number was increased by 3 equals 4 times the
gtnhenbr [62]

Answer:

16

Step-by-step explanation:

61+3=64

16*4=64

64=64

5 0
2 years ago
What is the significance of the point of intersection of a pair of simultaneous equations
Alex777 [14]

Answer:

The point of intersection gives the solution set(s) of the associated system.

Step-by-step explanation:

If we have a pair of simultaneous equations in 2 variables in x and y, then the point of intersection is the ordered pair (x,y).

This could be a unique intersection, only one point or infinitely many intersection.

This gives us the solution of the simultaneous equations.

Therefore the significance of the point of intersection of a pair of simultaneous equations is that, it gives us the solution set(s) of the associated system.

7 0
2 years ago
A tortoise is walking in the desert. It walks at a speed of 7 meters per minute for 8.96 meters. For how many minutes does it wa
Licemer1 [7]

Answer:

1.28 minutes

Step-by-step explanation:

Given data

Speed= 7 meters per minute

Distance= 8.96 meters

We know that the expression for the Speed, Distance, and time is given as

Speed= Distance/Time

TIme= Distance/Speed

Substitute

Time= 8.96/7

Time= 1.28 minutes

7 0
2 years ago
The ages of four cousins are consecutive integers. Let the integers equal n, n+1, n+2 and n +3. The sum of their ages is 34 How
bulgar [2K]

Answer:

10

Step-by-step explanation:

n + n+1 + n+2 + n+3 = 4n + 6

4n + 6 = 34

4n = 28

n = 7

Eldest: n + 3 = 7 + 3 = 10

7 0
3 years ago
Read 2 more answers
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