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maw [93]
3 years ago
15

9.

Mathematics
2 answers:
wariber [46]3 years ago
7 0
9.
6y+4=8+2y+2y
Combine like terms
6y+4=8+4y
Get like terms on the same side, subtract 4 from both sides to get
6y=4+4y
Subtract 4y from both sides to get
2y=4 IS the answer (even though it can be simplified further, that answer isn't one of the choices so 2y=4 is the equation simplified.)

10.
Step 2 was the mistake when you distribute a number you don't add (which is what they did to get 5x) you multiply to get 6x. So the correct step 2 would be
6x-8=12+2x
Becuase of the distributive property.

Hope this helped!



mars1129 [50]3 years ago
4 0
Question 9:

<span>6y + 4 = 8 + 2y + 2y

6y + 4 = 8 + 4y

6y - 4y = 8 - 4

2y = 4

y = </span>\frac{4}{2}

y = 2

Hence, the answer is C.

Question 10:

<span>2(3x – 4) = 8 + 2x + 4

6x - 8 = 12 + 2x

6x - 2x = 12 + 8

4x = 20

x = </span>\frac{20}{4}

x = 5

Hence, the answer is B.
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6 Paul runs 1.5 km on the bearing 127°. a Draw a diagram of the situation. b How far east is Paul from his starting point? ( How
GenaCL600 [577]

By running in a bearing of 127°, Paul motion is in the south eastern direction.

Correct responses:

a. Please find attached the required diagram created with MS Visio

b. Paul's distance travelled east is approximately 11.98 km

  • Paul's distance travelled south is approximately 0.903 km

<h3>Method used for diagram and for the distance calculation</h3>

Given:

The distance Paul runs = 1.5 km

The bearing Paul is running = 127°

a. The bearing of path Paul runs, 127°, is the angle measured in the clockwise direction relative to the northern direction

Please find attached the diagram representing the situation, created with MS Visio.

b. Paul's distance travelled east relative to the starting point is given by the component of Paul's path in the x-axis direction which is found as follows;

  • Paul's distance east =  15 km × cos(37°) ≈ <u>11.98 km</u>

Pau's distance travelled in the south direction relative to the starting point

is given by the vertical distance travelled relative to the x-axis, which is

given as follows;

Distance Paul travels south = 1.5 km × sin(37°) ≈ <u>0.903 km</u>

Learn more about bearings in trigonometry here:

brainly.com/question/23427938

5 0
2 years ago
1_____=1.6_____ What
IrinaK [193]

Answer:

1 mile is 1.6 km

Step-by-step explanation:

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6 0
3 years ago
Please help me understand
ioda

9514 1404 393

Answer:

  C.  18 inches

Step-by-step explanation:

The median of a trapezoid is the line segment that joins the midpoints of the sides of the trapezoid. It is halfway between the parallel bases, and is parallel to them. It length is the average of the lengths of the two bases:

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