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mart [117]
3 years ago
7

assuming that the DVD player loses 60% of its value every year it is in a video store suppose the initial value of the DVD playe

r was $80 what multiplier would you use to calculate the DVD players new valued
Mathematics
1 answer:
Alik [6]3 years ago
5 0
The multiplier you would use to find the new value would be 0.4.

The reason for this is that 100%-60% =40%. This is the part of the value it will keep. 40% is the same as 0.4.

This decimal represents the part of the original price that is it still worth.

The multiplier is 0.4 because that it what you would multiply $80 by to find the new value.
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What is the solution to the equation 4(3x - 11) + 23 = 5x - 14 ?
Maurinko [17]
Hello there!

4(3x - 11) + 23 = 5x - 14

Apply the distributive property to 4(3x - 11)
4(3x) + 4(-11)
12x - 44

We now have:
12x - 44 + 23 = 5x - 14
Combine like-terms on the left-hand side of the equation.
-44 + 23 = -21

12x - 21 = 5x - 14
Get x on one side by subtracting 5x from both sides..
12x - 5x = 7x
5x - 5x = 0

7x - 21 = -14
Add 21 to both sides to isolate 7x.
-21 + 21 = 0
-14 + 21 = 7

7x = 7
Divide both sides by 7 to solve for x.
7x / 7 = x
7 / 7 = 1

We are now left with the following solution:
x = 1

I hope this helps!
7 0
3 years ago
(8x^2-6x-2)-(4x^2+6)
Anestetic [448]
The answer is 32x^4-24x^3+40x^2-36x-12
5 0
3 years ago
1.Which is an equivalent form of the equation 3x-3y=15?
defon

1) The given equation is 3x-3y=15

To solve for y we subtract 3x both sides:

3x-3x-3y=-3x+15

-3y=-3x+15

With y term -3 is multiplied .We perform the opposite operation both sides that is divide by -3 both sides we have:

y=x-5

Option A :y=x-5 is the right answer.

2) |2x-1|=3

We can remove the absolute sign by forming equations  taking both the positive and negative signs:

2x-1=3   or                            2x-1=-3

Solving the two equations for x:

2x=3+1            or               2x=-3+1

2x=4 ,x=2.                        2x=-2 , x=-1 .

Option a)x=2 or x=-1 is the right answer.

3)  2< 3x-1 ≤ 5

Adding 1 to all the sides we have:

3<3x≤ 6

Dividing by 3 :

1<x≤ 2.



8 0
3 years ago
Read 2 more answers
Help me with this math question please I'm giving away brainliests​
Lyrx [107]

Answer:the first ans  (f(x)=(1/x+2)+3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What are the first three terms of the Arithmetic Sequence a, = 15 - 2(n - 1)?
IgorC [24]

Answer:

C

Step-by-step explanation:

Plug 1, 2, and 3 into n and you'll get 15, 13, and 11 respectively

4 0
3 years ago
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