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FinnZ [79.3K]
3 years ago
12

OCR

Mathematics
2 answers:
mars1129 [50]3 years ago
7 0

Answer:

add 3 and divide by 2

Step-by-step explanation:

2x - 3 = 12

add 3 to both sides

2x - 3 +3 = 12 + 3

           2x = 15

Now divide bothsides by 2

\frac{2x}{2}=\frac{15}{2}\\\\x=7.5

Anika [276]3 years ago
3 0
Add 3 and divide by 2
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Calculate the area of a square with a side length of 12 cm.
inna [77]

Answer:

24 cm squared

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve for 2. Round to the nearest tenth, if necessary.<br> 19<br> 38<br> R<br> X
inessss [21]

Answer:

24.36

Step-by-step explanation:

tan(angle) = opposite/adjacent

tan(38) = 19/x

x = 19/tan(38) = 19/0.78 = 24.4

4 0
2 years ago
2x+3y=12 y=x+1.5 in substitution form
Marizza181 [45]

Answer:

x=1.5, y=3

Step-by-step explanation:

Substitution allows you to plug it into the equation in the form of 3y.

3 0
4 years ago
I NEED HELP PLEASE
Elan Coil [88]

Answer:

y=x+8 because your friend's allowance is y but also $8 more than yours, x. x+8 is her allowance so x+8=y

3 0
3 years ago
RRS-1
AVprozaik [17]

The missing measures are listed below:

  1. m \angle 1 = m \angle 3 = m \angle 6 = 59^{\circ}
  2. m\angle 2 = m\angle 4 = m\angle 5 = m \angle 11 = 31^{\circ}
  3. m\angle 7 = m\angle 8 = m\angle 9 = m\angle 10 = 118^{\circ}

<h3>Procedure - Finding missing angles in a quadrilateral</h3>

In this question we must determine the measures of the <em>missing</em> angles by both <em>geometric</em> and <em>algebraic</em> means, whose procedure is presented below:

  1. x = 59^{\circ} Given
  2. m \angle 3 = 59^{\circ} Alternate internal angles
  3. m \angle 11 = 31^{\circ} Complementary angles
  4. m \angle 4 = 31^{\circ} Alternate internal angles
  5. m \angle 6 = 59^{\circ} Isosceles triangle
  6. m \angle 9 = 62^{\circ} Sum of internal angles in a triangle
  7. m \angle 10 = 118^{\circ} Supplementary angles
  8. m \angle 8 = 62^{\circ}, m\angle 7 = 118^{\circ} Vertical angles
  9. m \angle 2 = 31^{\circ} Sum of internal angles in a triangle
  10. m \angle 5 = 31^{\circ} Sum of internal angles in a triangle
  11. m \angle 1 = 59^{\circ} Sum of internal angles in a triangle/Result

The missing measures are listed below:

  1. m \angle 1 = m \angle 3 = m \angle 6 = 59^{\circ}
  2. m\angle 2 = m\angle 4 = m\angle 5 = m \angle 11 = 31^{\circ}
  3. m\angle 7 = m\angle 8 = m\angle 9 = m\angle 10 = 118^{\circ}

To learn more on angles, we kindly invite to check this verified question: brainly.com/question/15767203

5 0
2 years ago
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