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melomori [17]
4 years ago
6

Which expression represents the phrase the sum of twice a number and 7

Mathematics
1 answer:
bixtya [17]4 years ago
3 0

Answer:

2n+7

Step-by-step explanation:

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Linear Equation In One Variable<br>solve x,3/2-7=5​
Karo-lina-s [1.5K]

Question:

Linear Equation In One Variable

solve x,

\frac{3x}{2} -7 = 5

Answer:

x = 8

Step-by-step explanation:

Given

\frac{3x}{2} -7 = 5

Required

Solve for x

\frac{3x}{2} -7 = 5

Multiply through by 2

2(\frac{3x}{2} -7) = 5 * 2

2*\frac{3x}{2} -2 * 7 = 5 * 2

3x - 14 = 10

3x = 14 + 10

3x = 24

Solve for x

x = \frac{24}{3}

x = 8

4 0
4 years ago
Given a line and a point not on that line, how many different planes can pass
77julia77 [94]

For a given line and a point outside of it, only one plane passes through both of these.

<h3>How many planes can be defined with one line and one point outside?</h3>

By definition, we say that a plane is defined by 3 non-colinear points.

With 3 non-colinear points we can make a line and a point outside of that line.

So, in resume, any plane can be defined by a line and a point outside of it. Then, with a line and a point outside of it we can define a single plane. This means that if we have a line and a point outside of the line, only a single plane passes through both of them.

So the correct option is C: one.

If you want to learn more about planes:

brainly.com/question/1655368

#SPJ1

5 0
2 years ago
Hi can someone please help me with this problem? It’s solving systems of equations in 3 variables by elimination
WINSTONCH [101]
X=10 Y=-2 Z=4 so basically your answer will be (10,-2,4) & your welcome
7 0
3 years ago
Please help me!!!!! I need help!!!!!!!!!
Alex
The answer is 145 divided by tan 65 degrees.

Since the equation for tangent is opposite/adjacent, you can just plug the numbers in.

tan(65)=145/x (x being the height that you are trying to find)

tan(65) * x = 145

Then divide tan(65) to isolate the x and you get:

145/tan(65)

Hope this helps!
6 0
4 years ago
What is the value of x?
Romashka [77]

Answer:

54

Step-by-step explanation:

2x+2=3x-52

subtract 2 from both sides

2x=3x-54

x=54

4 0
4 years ago
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