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WARRIOR [948]
3 years ago
13

Which ordered pair is a solution of the equation? equation (-4x+7=2y-3)

Mathematics
2 answers:
Otrada [13]3 years ago
6 0
I agree it’s options c
Greeley [361]3 years ago
4 0

Answer:

Its Option C.

Step-by-step explanation:

-4x + 7 = 2y - 3

Substitute the given values in the  given equation:-

(2,1):-    -4(2) + 7 = -1  and 2(1) - 3 = -1  so (2,1) is a solution.

(5, -5):-  -4(5) + 7 = -13 and 2(-5) - 3 = -13  so (5, -5) is also a solution.

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−1.64 as a mixed number in simplest form.
liraira [26]
Convert to a mixed number by placing the numbers to the right of the decimal over 100. Reduce the fraction. Then, convert the mixed number to an improper fraction by multiplying the denominator by the whole number and adding the numerator to get the new numerator. Place this new numerator over the original denominator.

-41\25
4 0
3 years ago
If the temperature at which a certain compound melts is a random variable with mean value 120 ???? ???? and standard deviation 2
bogdanovich [222]
Answer:
Temperature is measured in units of temperature.
In SI units,  it is K (degrees Kelvin).
In CGS units, it is °C (degrees Celsius)
In English units, it is °F (degrees Fahrenheit)

Therefore the mean and standard deviation will be measured in the selected units for temperature.
6 0
3 years ago
Systems of linear equations iready quiz
saw5 [17]

Answer:

<h2>One solution.</h2>

Step-by-step explanation:

The given question is

<em>Does the following system have One Solution, No Solution, or Infinite Solutions.   </em>

<em />y = 4x + 8\\y = -5x + 3<em />

<em />

<em />

To solve this system, we just need to multiply the first equation by -1, and then sum those equations.

-y = -4x - 8\\y = -5x + 3

0=-9x-5\\5=-9x\\x=-\frac{5}{9}

Then, we use this value to find the other one

y=4x+8\\y=4(-\frac{5}{9} )+8\\y=-\frac{20}{9}+8\\y =\frac{-20+72}{9} \\y=\frac{52}{9}

As you can observe, the system of equations have a unique solution.

Therefore, the answer is one solution.

7 0
3 years ago
Please help I will give brainlest or whatever!!
Mashutka [201]
The answer is D 6z+42
8 0
3 years ago
Factorise
Rufina [12.5K]

Answer:

6x - 9

3(2x−3)

2a(5b+3)

Step-by-step explanation:

Factor 6a+10ab

10ab+6a

Factor 6x−9

6x−9

=3(2x−3)

                             :))

8 0
3 years ago
Read 2 more answers
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