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nadya68 [22]
4 years ago
7

3x + 4 = 5x - 2 pleaseeee quick

Mathematics
2 answers:
Olenka [21]4 years ago
5 0

Answer:

jejdjdjdmrmrmmememe

Bezzdna [24]4 years ago
3 0

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

3*x-4-(5*x-2)=0

Step by step solution :

STEP 1 Pull out like factors :

-2x - 2 = -2 • (x + 1)

STEP 2

Equations which are never true

Solve : -2 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

Solve : x+1 = 0

Subtract 1 from both sides of the equation :

x = -1

One solution was found :

x = -1

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First you do 1.00-0.10 to get 0.90, then you times 85 by 0.90 to get your result of $76.5 a brainliest would be appreciated if i helped!

Answer: 76.5 dollars
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The difference of the squares of two positive consecutive even integers is 20 . find the integers. use the fact​ that, if x repr
Nadusha1986 [10]
If x is the first number, x+2 is the next consecutive even integer. The difference (subtraction) of their squares equals 20. Therefore:
(x+2)²-x²=20...expand this:
x²+4x+4-x²=20 
x²+4x+4-x²=20
4x+4=20
4x=16
x=4. Therefore the next consecutive even integer is x+2=6.
To check: 6²-4² must equal 20
36-16=20 check!

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Why is the location of an irrational number an approximate location
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7 0
3 years ago
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Question 5 of 30<br> What is the period of the graph of y<br> 5cos(4x – 1) + 3?
Anastaziya [24]

Answer:

Period is \frac{\pi}{2}

Step-by-step explanation:

For the function y=acos(bx-c)+d, the period is \frac{2\pi}{|b|}.

Therefore, the period of the function is \frac{2\pi}{|b|}=\frac{2\pi}{|4|}=\frac{2\pi}{4}=\frac{\pi}{2}.

What this means is that the function's wave cycle will repeat every \frac{\pi}{2} units.

8 0
3 years ago
I dont know the answers to this question please tell me the x and y
Eddi Din [679]

<u>Answer:</u>

  • x = -5
  • y = 5

<u>Step-by-step explanation:</u>

  • => -7x - 2y = 25

            -4x - 9y = -25

  • => 4(-7x - 2y = 25)

             7(-4x - 9y = -25)

  • => -28x - 8y = 100

            -28x - 63y = -175

  • => 55y = 275
  • => y = 5

<u>Now, let's substitute the value of y into the first equation.</u>

  • => -7x - 2y = 25
  • => -7x - 2(5) = 25
  • => -7x - 10 = 25
  • => -7x = 35
  • => x = -5

<u>Now, let's check our answer to make sure our answer is correct.</u>

<u>Check:</u>

  • -4x - 9y = -25
  • => -4(-5) - 9(5) = -25
  • => 20 - 45 = -25
  • => -25 = -25

Hence, this is proved correct.

Hoped this helped.

BrainiacUser1357

3 0
2 years ago
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