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sergejj [24]
3 years ago
11

A student is trying to solve the system of two equations given below:

Mathematics
1 answer:
natima [27]3 years ago
5 0
If you are going to eliminate the y term the y must be the same value but different signs

since the second equation has y, a value of 3 you mist make the first one -3 so you will multiply the whole equation by -3
c is the answer
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One angle is 25° bigger than another angle. the two angles are supplementary. what is the measure of the two angles
Rama09 [41]
1st angle  - x⁰
2nd angle - (x+25)⁰
The angles are supplementary,
so
x+x+25=180
2x=155
x=77.5⁰ -1st angle

77.5+25=102.5⁰ - 2nd angle


3 0
3 years ago
Solve 2x + 3 = 9 nowwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
Stels [109]

Answer:

x=3

Step-by-step explanation:

2

x

+

3

=

9

We want to find the variable  

x

, so we have to make it alone. To do so, first subtract  

3

from both sides of the equation:

2

x

+

3

 

−

 

3

=

9

 

−

 

3

2

x

=

6

Now divide both sides by  

2

:

2

x

2

=

6

2

So the final answer is:

x

=

3

Hope this helps!

5 0
3 years ago
Read 2 more answers
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sveta [45]

Answer:

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3 0
2 years ago
Expression in fractured form
pychu [463]

Answer:

Step-by-step explanation:

for the first one it's (x + 5) x (x - 7)

second one it's  (x + 5) x (x + 7)

third one is (x - 5) x ( x + 7)

fourth one is (x -5) x (x - 7)

thats the answer

8 0
3 years ago
Please helppp number 11
aivan3 [116]

Answer:

(1/3)⁷

Step-by-step explanation:

negative exponents work like this:

x⁻²=(1/x)²

Apply this theory to this equation:

3⁻⁷=

(1/3)⁷

4 0
3 years ago
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