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Nikitich [7]
2 years ago
10

What is the solution set for the open sentence with the given replacement set?

Mathematics
1 answer:
olganol [36]2 years ago
7 0

Answer:

6

Step-by-step explanation:

2x + 7 = 19

     -7     -7

2x = 12

12/2 = x

6 = x

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4 0
3 years ago
1.45x + 1.25y =70.85 <br><br> x + y = 53
SpyIntel [72]

Answer:

Your answer is

y= 30

x= 23

Mark my answer as brainlist . I need that urgently . Folow me for more answer.

Step-by-step explanation:

6 0
3 years ago
What is the maximum number of possible solutions for the system shown below?
vekshin1

Answer:

B:  4 solutions

Step-by-step explanation:

Combining the two equations results in 2x² = 52, or x² = 26.

This equation has two solutions:  x = ±√26.

As before, x² = 26.  If we substitute 26 for x² in the 1st equation, we get:

26 - 4y² = 16, or 4y² = 10, or y = ±√5/2.  Again:  two solutions.

If we take x to be +√26, y could be ±√(5/2).

Check:  is ( √26, √(5/2) ) a solution of the system?

Subbing these values into the first equation, we get:

26 - 4(5/2) = 16.  Is this true?

Then 10 = 10.  Yes.

Through three more checks, we find that this system has FOUR solutions.

5 0
2 years ago
The circumference of a flower garden is 247 ud. What is the area of the flower garden in terms of
lisov135 [29]

Answer:15252.25π^3

Step-by-step explanation:

Radius=r

Circumference=247 ud

Circumference=2 x π x r

247=2πr

Divide both sides by 2π

247/2π=2πr/2π

123.5π=r

Radius=123.5π

Area of circle=π x r x r

Area of circle=π x 123.5π x 123.5π

Area of circle=15252.25π^3

4 0
3 years ago
A drinking water project construct a cubical tank of 20m long what is the capacity of the tank​
earnstyle [38]
3.45 is the answer I think

4 0
3 years ago
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