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GuDViN [60]
3 years ago
11

Which ordered pair represents the solution to the system of equations? {−5x+7y=−196x−2y=10

Mathematics
1 answer:
k0ka [10]3 years ago
8 0
Answer:
x = 1
y = -2

Explanation:
First, solve for x by subtracting 7y from both sides of the first equation and then divide both sides by -5.

-5x + 7y = -19
-5x + 7y - 7y = -19 - 7y
-5x = -19 - 7y
-5x/ -5 = -19 - 7y/ -5
x = -19 - 7y/ -5

Next, substitute the value of x into the second equation and solve.

6 - (-19 - 7y)/ 5 - 2y = 10
- 6(-19 - 7y)/ 5 - 2y = 10

Then, solve for y

- 6(-19 - 7y)/ 5 - 2y = 10
-6(-19 - 7y) - 10y = 50
114 + 42y - 10y = 50
144 + 32y = 50
32y = 50 - 144
32y = -64
32y/ 32 = -64/ 32
y = -2

Finally, substitute the value of y into the x value we found earlier and solve

x = - 19 - 7y/ 5
x = - 19 - 7 • -2/ 5
x = 1
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The graph of y=f(x) is the solid black graph below. Whoch function represents the dotted line
Savatey [412]

The function that represents the dotted line of the graph using transformation rules is; f(x - 1) - 4.

<h3>How to Interpret Translation of Graphs?</h3>

For the function f(x) of the given graph,  when we look at the solid line, we see that it has a root at x = -1 which means it has a zero at x = -1.

However, when observing the dashed line, we see that it has a root at x = 0 which means it has a zero at x = 0.

Thus, we can  deduce from transformation rules that the function was moved by 1 unit to the right to get the new function.

Secondly, we observe that the dashed line is also below the function f(x), and we observe further that 4 was subtracted. Therefore, when we use the transformation rules again for subtracting from a function, we get the final function as; f(x - 1) - 4.

Read more about Translation of Graphs at; brainly.com/question/26238840

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4 0
1 year ago
<img src="https://tex.z-dn.net/?f=%5Csf%2016%2B11%5Ctimes%209" id="TexFormula1" title="\sf 16+11\times 9" alt="\sf 16+11\times 9
lawyer [7]

Answer:

115

Step-by-step explanation:

using Pemdas rule

here in this problem first multiply and then add

11 \times 9 = 99 \\ 99 + 16 = 115

4 0
2 years ago
1. You and 3 friends go out to Baskin and Robbins. Each buy ice cream for $5, a cookie = $3, and a drink = $2, but you do not bu
Vadim26 [7]

Answer:

Step-by-step explanation:

Question 1-

friend: 5+3+2= 10

friend: 5+3+2=10

friend: 5+3+2=10

me 5+3=8

10+10+10+8 = $28

total cost at Baskin Robbins = $28

Question 2-

15x4= 60

8x2= 16

total= 76

Im sorry but I don't get the 3rd question. Hope what I put so far helps :)

7 0
2 years ago
Read 2 more answers
Simplify 3(x+4)<br> A.3(x+4)<br> B.7x<br> C.12x<br> D.3X+12
N76 [4]

Answer:

D. 3x + 12

Step-by-step explanation:

Distribute the 3 inside.

3 * x = 3x

3 * 4 = 12

3x + 12

8 0
3 years ago
Read 2 more answers
Put the following in slope intercept form<br><br> 4x - 3y = 15
Tcecarenko [31]

slope intercept form: y = mx + b

Note the equal sign. what you do to one side, you do to the other. First, subtract 4x from both sides

4x - 3y = 15

4x (-4x) - 3y = 15 (-4x)

-3y = -4x + 15

Next, divide -3 from both sides to isolate the y.

(-3y)/-3 = (-4x + 15)/-3

y = (4/3)x - 5

y = (4/3)x - 5 is your answer

hope this helps

4 0
3 years ago
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