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3 years ago

HELP!! can someone lease help me with #11 and #12

Mathematics

1 answer:

Fiesta28 [93]3 years ago

5 0

11. The two angles are vertical angles, which mean they are equal to each other.

14x - 5 = 13x

Add 5 to both sides:

14x = 13x + 5

Subtract 13x from both sides:

x = 5

12. The two angles are supplementary and when added together need to equal 180 degrees.

5x -20 + 3x = 180

Combine like terms:

8x -20 = 180

Add 20 to both sides:

8x = 200

Divide both sides by 8:

x = 200 /8

x = 25

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65%of 186 = show how you did it so i can learn how to do it please

Natali [406]

It is pretty simple
All you have to do is multiply 186 times .65 which you get 120.9
So that's all you have to do

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3 years ago

Read 2 more answers

Rewrite the expression in factored form: x^2+12x+27

max2010maxim [7]

Answer:

c. (x+3)(x+9)

Step-by-step explanation:

x^2+12x+27

The middle number is 12 and the last number is 27.

We need two numbers that...

Add together to get 12

Multiply together to get 27

Try 3 and 9:

3+9 = 12

3*9 = 27

Fill in the blanks in

(x+_)(x+_)

with 3 and 9 to get...

(x+3)(x+9)

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3 years ago

Step 1: –10 + 8x < 6x – 4

Aleks04 [339]

Answer:

3 > x

Step-by-step explanation:

–2(5 – 4x) < 6x – 4

Step 1: –10 + 8x < 6x – 4

Step 2: –10 < –2x – 4

Step 3: –6 < –2x

Step 4: divide each side by by -2, remembering to flip the inequality

-6/-2 > -2/-2

3 > x

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3 years ago

Read 2 more answers

Please help I don’t get this at all

igor_vitrenko [27]

Answer:

11.82 kilometers in Luis's journey in total

Step-by-step explanation:

As per the statement:

To visit his grandmother

Distance Luis takes a train 6.37 kilometers

Distance Luis takes a car 5.45 kilometers.

We have to find the total distance.

$\text{Total distance} = \text{distance by train}+\text{distance by car}$

Substitute the given values we have;

$\text{Total distance Lui's journey} = 6.37+5.45 = 11.82$ km

Therefore, 11.82 kilometers in Luis's journey in total

4 0

3 years ago

FIND THE MEASURE OF ANGLE F PLS HELP ASAP!

Tomtit [17]

Answer:

We know that the sum of the the interior angles of a quadrilateral is 360°.

In the figure, angle H = angle F

angle H+ angle F+ angle E+ angle G =360°

$x + x + 87 + 31 = 360 \\ 2x + 118 = 360 \\ 2x = 242 \\ x = \frac{242}{2} \\ \boxed{x = 121}$

Therefore, <em><u>Angle F = 121°.</u></em>

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3 years ago