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dem82 [27]
3 years ago
7

Solve the system of equations. 3x-4y=8 18x-5y=10

Mathematics
1 answer:
ipn [44]3 years ago
7 0

Answer:

y = -2    x = 0

Step-by-step explanation:

1. 3x-4y = 8

2. 18-5y = 10

Multiply equation 1 by 6

3. 18x-24y = 48

Subtract equation 2 from equation 3

4. -19y = 38

        y = 38/-19

        y = -2

Sub y = -2 back into equation 1

      3x-4(-2) = 8

      3x + 8 = 8

      3x = 0

      x = 0/3

      x = 0

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3 years ago
Translate to an equation and solve the product of 2 and a number increased by 8 is -48
Marizza181 [45]
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4 0
4 years ago
LM = 9, NR = 16, SR = 8. Find the perimeter of triangle LRN.
sweet [91]
<h2>D. 50 units</h2>

Hi, I’m Lena and I will be answering your question to the best of my ability. If you have any further questions after my answer, do not hesitate to ask me! ツ

♡ Let’s look at the main important thing(s) that will lead you in the correct path.

♥ The perimeter is the outside, it is <em>around</em> the figure. When you see those inner triangles, do not pay attention to them! They are just there to make your overthink the question.

♡ Let's solve!

♥ To begin, let's take LM. It already gives you half the segment, so all you need to do is double the number. 9*2=18.

♥ Now, let's take a look at NR. They already give you the segment as a whole, so you do not need to worry about it!

♥ Look at SR. You do the same thing as you did to LM, double the number. 8*2=16.

Now, we add all the numbers to get our final answer.

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3 0
3 years ago
You bought a magazine for 4$ and 4 books you spent a total of 30$ how much did each book cost
pogonyaev

Answer:

6.5

Step-by-step explanation:30-4=26

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3 0
3 years ago
Read 2 more answers
0.003 0.03 0.3 three more of them come after which are they ?
FromTheMoon [43]
0.3, 0.03,0.003
Because 0.3 is equivalent to 3/10
Because 0.03 is equivalent to 3/100
Because 0.003 is equivalent to 3/1000
4 0
3 years ago
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