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Amiraneli [1.4K]
2 years ago
11

Find the value of the missing angle and then find x.

Mathematics
2 answers:
Zielflug [23.3K]2 years ago
7 0

Answer:

109°, x = 8

Step-by-step explanation:

The angle inside the quadrilateral is adjacent to 71°, then

missing angle = 180° - 71° = 109°

The sum of the interior angles of a quadrilateral = 360°

sum the interior angles and equate to 360

8x - 1 + 13x - 2 + 10x + 6 + 109 = 360, that is

31x + 112 = 360 ( subtract 112 from both sides )

31x = 248 ( divide both sides by 31 )

x = 8

pishuonlain [190]2 years ago
5 0

Answer:

x=8

Step-by-step explanation:

From the image, we can assume that the shape is a quadrilateral because it has 4 sides. A quadrilateral has 360 degrees in it. To start out, you need to find the measure of the inside angle. To get it, you would subtract 71 from 180 (since it is on a straight line) and get 109 degrees. From there, you just add all the angles up and set it equal to 360. If you add everything up, it should look something like 31x+112=360. You need to isolate x, so subtract 112 from both sides to get 31x=248. Now divide both sides by 31 and x should equal 8.

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2 years ago
Which number line correctly shows –0.8 + 0.6? A number line going from negative 1.6 to positive 1.6. An arrow goes from negative
Phoenix [80]

Answer:

Hi there, are you sure you didn't forget any parenthesis or signs? I can't find the right answer in the options, the one that would end up at -0.2 in the end I can edit my answer if you tell me some additional option or info about the expression I need to show on the number line

Step-by-step explanation:

which number line shows correctly -0.8 + 0.6?

well lets write it in words minus eight tenths plus six tenths\

so minus:

you go 0.8 units to the left from 0,

then plus:

you go 0.6 units right from -0.8, getting to -0.2

since there is no exact answer like that we can rearrange the addends 0.6-0.8, now:

we go from 0 6 tenths units to the right and get to 0.6, then we go from 0.6 eight tenths unit to the left to get to -0.2

4 0
3 years ago
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Step-by-step explanation:

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3 years ago
A car traveld 32 miles in 4 hours at this rate how many miles will the car travel in 0.5 hours
Mandarinka [93]

Answer:

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Step-by-step explanation:

In order to find how many miles the car will travel in 0.5 hours, we can set up a proportion.

\frac{32}{4} = \frac{x}{0.5}

We can now cross multiply to find the value of x.

32 \cdot 0.5 = 16\\\\16\div4 = 4

So the car can travel 4 miles in 0.5 hours.

Hope this helped!

5 0
3 years ago
Read 2 more answers
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