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yKpoI14uk [10]
4 years ago
14

I’m not good in algebra so help me out please ☹️

Mathematics
1 answer:
Monica [59]4 years ago
3 0

Answer:

I believe it's B.

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The following set of linear equations 2x+2y=18 x+3y=17
NemiM [27]

Answer:

x = 5

y = 4

Step-by-step explanation:

1. 2x + 2y = 18

2. x + 3y = 17

Multiply the first equation by 1 and the second equation by 2 to eliminate x

We have

2x + 2y = 18

2x + 6y = 34

Subtract equation 2 from equation 1

-4y = -16

Divide both sides by -4 to isolate y

-4y/-4 = -16/-4

y = 4

Now substitute 4 for y in either equation to get x. Using equation 2 we have

x + 3y = 17

x + 3 x 4 = 17

x + 12 = 17

Subtract 12 from both sides

x + 12 - 12 = 17 - 12

x = 5

x = 5 and

y = 4

8 0
3 years ago
Liam has 12 red balloons and 14 blue balloons.He put all of his balloons in 2 equal groups. How many balloons are in each group?
Law Incorporation [45]

Answer:

A.13

Step-by-step explanation:

You just have to add the 12 and the 14 and then divide it by 2.

12+14=26

26/2=<em> 13 </em>

<em />

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<em>Hope it helps!</em>

4 0
3 years ago
Read 2 more answers
To the nearest degree, what is the measure of each exterior angle of a regular decagon?
aniked [119]

Answer:

Exterior angle of a decagon will be 36°

Step-by-step explanation:

Measure of all interior angles of a polygon is represented by (n - 2)×180°

where n is the number of sides of the polygon.

Now we have to calculate the exterior angle of a regular decagon.

As we know exterior angle of polygon is supplementary of the interior angle.

So we will calculate interior angle first.

Sum of interior angles of decagon = (n - 2)×180° = 8×180° = 1440°

Since decagon is regular so all angles will be same.

So one angle of decagon = 1440 ÷ 10 = 144°

Now exterior angle = 180 - 144 = 36°

Each exterior angle of a decagon will be 36°.

8 0
3 years ago
hey guys i need help on this lori is running in a marathon witch is 26.2 miles long .so far she has run one tenth of the maratho
Slav-nsk [51]
This can be solved by multiplying 26.2 by 1/10 to get 2.62 You can also just move the decimal one to the left to get he same answer of 2.62 Lori has ran 2.62 miles
3 0
3 years ago
Use your knowledge about tire bebeling to fill out the following chert. Remember that I inch 254 mm
faltersainse [42]

Answer:

zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Step-by-step explanation:

5 0
3 years ago
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