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GenaCL600 [577]
3 years ago
10

the length of side AB is twice the length of side AC. Write an expression for the perimeter of the triangle

Mathematics
1 answer:
Mamont248 [21]3 years ago
8 0
  • Answer:

<em>P = 3AC + BC</em>

  • Step-by-step explanation:

<em>AB = 2AC</em>

<em>P = AB + AC + BC </em>

<em>replace AB</em>

<em>P = 2AC + AC + BC</em>

<em>P = 3AC + BC</em>

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6x - 2y = 5
laiz [17]

Answer:

The given system has NO SOLUTION.

Step-by-step explanation:

Here, the given system of equation is:

6 x -  2 y = 5     .......... (1)

3 x  - y = 10          .... (2)

Multiply equation 2 with (-2), we get:

3 x  - y = 10     ( x -2)

⇒  - 6 x + 2 y = - 20

Now, ADD this to equation (1) , we get:

6 x - 2 y  - 6 x + 2 y  = 5 - 20

or, 0 = - 15

WHICH IS NOT POSSIBLE as 0 ≠ -15

Hence, the given system has NO SOLUTION.

7 0
3 years ago
5+d&gt;5-d solve for d please help now
lilavasa [31]

Step-by-step explanation:

5 + d > 5 - d

5 + d + d > 5

5 + 2d > 5

2d > 5 - 5

2d > 0

d > 0 ÷ 2

d > 0

6 0
3 years ago
Decrease £16870 by 3% , give your answer rounded 2 decimal places
lidiya [134]
To decrease it by 3% we need to fine 97% of it and 97% is the same as 0.97

16870 times 0.97=16363.9

16870 decreased by 3% is 16363.9

I hope I've helped!
5 0
3 years ago
Guys help this is due
lesya [120]

Answer:

x = 45

Step-by-step explanation:

Well here's what we know:

2x + 45 + x = 180

Solve from there:

3x = 135

x = 45

You can plug it back in to check:

2(45) + 45 + 45 = 180

90 + 80 = 180, so it checks out :)

8 0
3 years ago
Read 2 more answers
Help im stuck they are trying to find the area
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Answer:

3. 10 X 20 = 200

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Step-by-step explanation:

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A = L X W

6 0
2 years ago
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