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monitta
1 year ago
10

On your birthday you receive a new TV valued at $1199. The value of the TV decreases by 25% each year. What will its value be 4

years from now?
Mathematics
1 answer:
earnstyle [38]1 year ago
4 0

Answer: 74.93

Step-by-step explanation:   if you heard of the line equals line method this should be able to help you.  

299.75                     25%

---------------=------------------  

$1199                     100%      

so you cross multiply 1199 and 25 and then divide it by 100.   which would be 299.75 that is the price per 1 year then you divide that value by 4 and that will be your answer.  

299.75 divided by 4= 74.93  

hope this helps

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Troyanec [42]
The domain is the x values

y = 2 - x

when x = -3
y = 2 - (-3)
y = 2 + 3
y = 5....so ur points are (-3,5)

when x = -2
y = 2 - (-2)
y = 2 + 2
y = 4....so ur points are (-2,4)

when x = -1
y = 2 - (-1)
y = 2 + 1
y = 3...so ur points are (-1,3)

when x = 0
y = 2 - 0
y = 2....so ur points are (0,2)

when x = 1
y = 2 - 1
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7 0
2 years ago
A pebble is tossed into the air from the top of a cliff. The height, in feet, of the pebble over time is modeled by the equation
Charra [1.4K]

Answer:

96

Step-by-step explanation:

The maximum height reached by the pebble modeled by the quadratic function,

h(t)=-16t^2+32t+80, can be found by finding the vertex.

Let's first find the t-coordinate of the vertex . The max height will correspond to this value of t which means we have to find the h(t)-coordinate.

When comparing h to at^2+bt+c, we see that:

a=-16

b=32

c=80

We need to evaluate the following to find the t-coordinate of the vertex:

t=\frac{-b}{2a}

t=\frac{-32}{2(-16)}

t=\frac{-32}{-32}

t=1

So now to find the correspond h(t)-coordinate, we will need to replace t in -16t^2+32t+80 with 1:

-16(1)^2+32(1)+80

-16(1)+32+80

-16+32+80

16+80

96

5 0
2 years ago
Which equation represents a proportional relationship with a constant of proportionality of 14? y = x + 14 y = 14x 14y = x y = x
Ivanshal [37]

For y and x to be the variables.

Equation that represents a proportional relationship with a constant or proportionality of 14 is : y = 14x

Here,  y and x are proportional to each other with a constant of proportionality of 14

6 0
1 year ago
Read 2 more answers
The price of a car was decreased by 16% to £2400. What was the price before the decrease?
miss Akunina [59]

Answer:

  £2857.14

Step-by-step explanation:

The price after the decrease is 84% of the original price, so we have ...

  £2400 = 0.84 · (original price)

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3 0
1 year ago
Given: Lines p and q are parallel and r is a transversal.
KengaRu [80]

Answer:

The statement A is Angle 2 is congruent to angle 3

The statement is Angle 3 is congruent to angle 7

Step-by-step explanation:

The given information are;

The given parallel lines = p and q

The given transversal = r

The angles from the top left at the intersection of p and r = 1, 2, 4, 3

The angles from the top left at the intersection of q and r = 5, 6, 8, 7

The 2-column table is presented as follows;

Statement {}                                                          Reasons

p is parallel to q and r is a transversal {}             Given

A {}                                                                          Vertical angles are congruent

B {}                                                                          Correlated angle theorem

Angle 2 is congruent to angle 7 {}                        Transitive property

We have the orientation of the angles given as follows;

1, 2

3, 4

5, 6

7, 8

Therefore, we have;

A = Angle 2 is congruent to angle 3 {}   Vertical angles are congruent

B = Angle 3 is congruent to angle 7  {}   Correlated angle theorem

To give;

Statement {}                                                          Reasons

p is parallel to q and r is a transversal {}             Given

Angle 2 is congruent to angle 3 {}                       Vertical angles are congruent

Angle 3 is congruent to angle 7 {}                       Correlated angle theorem

Angle 2 is congruent to angle 7 {}                       Transitive property

8 0
2 years ago
Read 2 more answers
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