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kari74 [83]
3 years ago
5

Write an equation to model the situation and

Mathematics
1 answer:
DENIUS [597]3 years ago
3 0

Answer:

Step-by-step explanation:

I think 65 divided by 625 is 104 phones jill sold srry if I’m wrongI’m just a kid trying to figure out all this work

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I jus need confirmation to see if I got the correct answer. If it is wrong could you please help me with it.
-Dominant- [34]

Answer:

It looks right to me

Step-by-step explanation:

5 0
3 years ago
Explain how two amounts of change can be the same but the percent of change can be different
densk [106]
If I understand the question correctly, you can have the same amount of change be two different percentages by having 4 quarters and 100 pennies.
Each quarter is 25%
Each penny is 1%
(am i explaining this right)
5 0
3 years ago
Determine whether the value is a discrete random​ variable, continuous random​ variable, or not a random variable.
Viktor [21]
Discrete random variable as we count the number of free dash throw attempts and we dont measure them (continuous)
7 0
3 years ago
Solve the quadratic.<br><br><br> 4x^2+4-20=0<br><br><br><br><br> brainlist if you explain
frez [133]

Answer:

  • x = -1/2(1 +√21) ≈ -2.79129
  • x = -1/2(1 -√21) ≈ 1.79129

Step-by-step explanation:

We assume the middle term is supposed to be 4x.

We can remove a common factor of 4 to simplify this a bit.

  x^2 +x -5 = 0

This is of the form

  ax^2 +bx +c = 0

where a=1, b=1, c=-5.

__

The <em>quadratic formula</em> gives the solutions as ...

  x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

Filling in the given coefficients, we have ...

  x = (-1 ±√(1^2 -4·1·(-5)))/(2·1)

  x = (-1±√21)/2

The solutions are x = -1/2(1 +√21) and -1/2(1 -√21).

_____

<em>If what you wrote is what you intend</em>, then the equation simplifies to 4x^2 -16 = 0.

Dividing by 4 and factoring the difference of squares gives ...

  x^2 -4 = 0

  (x -2)(x +2) = 0

These factors are zero (hence their product is 0) for the values x = 2 and x = -2.

The solutions are x=2 and x=-2.

5 0
3 years ago
You work for the Game, Fish, and Parks Department. You are replacing buoys at a local beach with a new model that has a height o
Vinvika [58]
The answer is 1 :)

7+2=9 10-9=1
6 0
3 years ago
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