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oksano4ka [1.4K]
3 years ago
12

WhAt is x + 12 = 4x - 15

Mathematics
2 answers:
maw [93]3 years ago
7 0
The answer to this is x=9 :)
mafiozo [28]3 years ago
5 0

<em>Answer:</em>

<em>X = 9</em>

<em>Step-by-step explanation:</em>

<em>X + 12 = 4X - 15</em>

<em>12 + 15 = 4X - X</em>

<em>3X = 27</em>

<em>X = 27 : 3</em>

<em>X = 9</em>

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at the football game on friday andrew threw 15 passes. he completed 10 for 120 yards what was his average per completion
Sunny_sXe [5.5K]

Answer:

120 divided by 10 is 12 yards per completion

6 0
3 years ago
Example 3
chubhunter [2.5K]

Answer:

We conclude that

  • The angle ∠1 = x = 36°
  • The angle ∠2 = 4x = 4(36°) = 144°

Step-by-step explanation:

Given

<1 and <2 form a linear pair

m∠1 = 4m∠2

To determine

Find the measure of each of the two angles.

<u>Important Points about linear pair:</u>

  • We know that when two lines meet or intersect, we get a linear pair of angles.
  • Linear pairs are basically two adjacent angles that form a line.
  • The measure of two adjacent angles forming a straight line is 180, meaning they are supplementary.

As

<1 and <2 form a linear pair

m∠1 = 4m∠2

In other words, angle 1 is 4 times the measure of angle ∠2.

Let the angle ∠1 be = x

As the angle 1 is 4 times the measure of angle ∠2, so

The angle 2 will be = 4x

As <1 and <2 forms a linear pair, thus the measure of the sum of <1 and <2 will be 180°, so

x + 4x = 180

5x = 180

divide both sides by 5

\frac{5x}{5}\:=\:\frac{180}{5}

\:x=36^{\circ }

Thus, we conclude that

  • The angle ∠1 = x = 36°
  • The angle ∠2 = 4x = 4(36°) = 144°
4 0
3 years ago
Consider the matrices.
algol13

Answer:

Attached

Step-by-step explanation:

5 0
3 years ago
Please help ASAP! I will mark Brainliest! Please answer CORRECTLY! No guessing! Show your work!
Margaret [11]

Answer:

b

Step-by-step explanation:

you should use mathaway, it's really useful

4 0
3 years ago
Find the slope of the line in simplest form.
N76 [4]

Answer:

-\frac{3}{2}

Step-by-step explanation:

To find the slope of the given line, slope is the rise divided by the run of a line.

  Slope  = \frac{y_{2} - y_{1}  }{x_{2} - x_{1}  }

  Picking points (4, 18)  and (8, 12)

 Now;

  x₁  = 4

  y₁  = 18

  x₂ = 8

  y₂ = 12

  Slope  = \frac{12 - 18}{8-4}   = -\frac{6}{4}   = -\frac{3}{2}

7 0
3 years ago
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