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2 years ago

What is the value of x that makes the given expression true?

Mathematics

2 answers:

Yanka [14]2 years ago

5 0

x=-4
.......................

Paul [167]2 years ago

4 0

X = - 4

2(-4-8) = -4 + 5(-4)

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I forgot how to do this. please give me a example on how i do this thank u

nydimaria [60]

Answer:

$t \in \mathrm {R}$

Step-by-step explanation:

$2t + 6 = 2(t + 3)$

$2t + 6 = 2t + 6$

$2t + 6 - 2t = 2t - 6 - 2t$

$6 = 6$

$t \in \mathrm {R}$

4 0

2 years ago

3/4 of a number is 27.Whats the number?

vazorg [7]

27*3/4

20.25

+ 27

47.25

7 0

2 years ago

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Is there an ordered pair that is a solution to BOTH of

Arte-miy333 [17]

Answer: The ordered pair is (2,3)

Step-by-step explanation:

To solve this problem, we can use substitution. With substitution, we substitute the y in each problem with the equations. In this case, x + 1 can substitute the y in y = -x + 5. Here is what the problem looks like now:

x + 1 = -x + 5

The reason we used substitution is because we assume that these linear equations are equal. We must prove it, though. We can use algebra.

Move the variables to one side and the numerical values to another:

x + x = 5 - 1.

Simplify.

2x = 4

Simplify.

x = 2.

Now, we got our x value, we can substitute it into our problem:

y = 2 + 1

y + -2 + 5

2 + 1 = - 2 + 5 = 3

Our x is 2, and our y is 3. The ordered pair that is a solution is (2,3).

6 0

3 years ago

The volume of a cylinder is 980 pi The height of the cylinder is 20 in. What is the radius of the cylinder?

AlexFokin [52]

█ Question █

The volume of a cylinder is 980 pi The height of the cylinder is 20 in. What is the radius of the cylinder?

█ Explanation █

We know the volume of the cylinder and the height, too. We are looking to find the radius. Do the following equation that is posted in the screenshot.

Answer: The radius is 7

Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia

7 0

2 years ago

Determine which ordered pair is a solution of y = –5x + 10. a. (–15, 5)

maria [59]

Y = - 5 x + 10
A ) x = - 15, y = 5
5 = 75 + 10
5 ≠ 85
B ) x = 2, y = 0
0 = - 5 · 2 + 10
0 = 0 ( correct )
C ) x = - 1, y = - 5,
- 5 = 5 + 10
- 5 ≠ 15
D ) x = 3, y = 25
25 = - 15 + 10
25 ≠ - 5
Answer:
B ) ( 2, 0 )

7 0

3 years ago

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