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Arada [10]
3 years ago
9

5x+10y=5 -13x+4y=17 NEED HELP WILL MARK THE RIGH ANSWER BRAINLIEST

Mathematics
2 answers:
AleksAgata [21]3 years ago
7 0
System of Linear Equations entered :

[1] 5x + 10y = 5
[2] -13x + 4y=17


Solve by Substitution :

// Solve equation [2] for the variable y


[2] 4y = 13x + 17

[2] y = 13x/4 + 17/4
// Plug this in for variable y in equation [1]

[1] 5x + 10•(13x/4+17/4) = 5
[1] 75x/2 = -75/2
[1] 75x = -75
// Solve equation [1] for the variable x


[1] 75x = - 75

[1] x = - 1
// By now we know this much :

x = -1
y = 13x/4+17/4
// Use the x value to solve for y

y = (13/4)(-1)+17/4 = 1
Solution :
{x,y} = {-1,1}
Lady_Fox [76]3 years ago
3 0

Answer:

I think x = 1 and y = 1/2. For the second: x = -1 4/13 or -1.307692, y = 4 1/4 or 4.25

Step-by-step explanation:

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lidiya [134]

Answer:

c is the correct answer

Step-by-step explanation:

because i worked it out

8 0
3 years ago
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If a bill cost $125. And they leave a $21.25 for a tip what percentage did they tip
yanalaym [24]

Answer:

17%

Step-by-step explanation:

Divide $21.25 by $125

6 0
3 years ago
Amelia makes necklaces using beads and wire. She starts with 6 feet of wire. How many necklaces can she make?
navik [9.2K]

If  Amelia  starts with 6 feet of wire, the amount of necklaces that she can make is 18.

<h3>What is the necklaces  about?</h3>

Jewelry wire is known to be a kind of a wire that can be either a copper, brass, or others that are often used in jewelry making.

Note that  Wire is seen today as a single unit, and it is also seen to be cylindrical, elongated part of drawn metal.

Using the table:

6  ÷ 1/3

= 6 x 3

= 18

Therefore, If  Amelia  starts with 6 feet of wire, the amount of necklaces that she can make is 18.

Therefore, option A is correct.


Learn more about Wiring from

brainly.com/question/14792853

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8 0
1 year ago
Your friend manages a campground during summer vacation. She has mapped the campground on a coordinate grid. The campsites have
Makovka662 [10]
I think the coordinates are 1, 10 but not positive because if you graph it you can see a kite in it so make the point close to 4,10
6 0
3 years ago
What is the domain and range for the following function and its inverse?
Basile [38]

Answer:

"f(x)  

domain: all real numbers, range: all real numbers  

f–1(x)  

domain: all real numbers, range: all real numbers"

Step-by-step explanation:

We can use the fact that the domain of a function and the range of its inverse are equal.

Also, the range of the function and the domain of its inverse are equal as well.

<em>Looking at the function f(x/ = -x + 5, we see that this is a line with a negative slope of 1 and a y-intercept of +5. </em>

As we know from the graph of lines, there is no restricting values in x and y. So for the original function,  domain is the set of all real numbers and the range is the set of all real numbers.

For the inverse, the range is set of all real numbers and domain is also the set of all real numbers.

First answer choice is right.

4 0
3 years ago
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