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Vaselesa [24]
2 years ago
9

I need help to answer/ solve this

Mathematics
1 answer:
Neporo4naja [7]2 years ago
6 0

Answer:

{x,y}={6,-1}

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable  y

[2]    y = -x + 5

// Plug this in for variable  y  in equation [1]

  [1]    x - 2•(-x +5) = 8

  [1]    3x = 18

// Solve equation [1] for the variable  x

[1]    3x = 18

[1]    x = 6

// By now we know this much :

   x = 6

   y = -x+5

// Use the  x  value to solve for  y

  y = -(6)+5 = -1

Solution :

{x,y} = {6,-1}

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Please help ! Easy 7th grade work ! I’ll give brainliest
spin [16.1K]

Answer:

for the first one...      24

Step-by-step explanation:

im in 7th grade pls mark brainliest <3

5 0
3 years ago
The tape diagram below represents 100\%100%100, percent.
elena-s [515]

Answer:

75 %

Step-by-step explanation:

100/4=25

25x3=75

6 0
3 years ago
Plzzzz help me with this question ❓​
Elina [12.6K]

Answer:

i think u should first givr her discount by doing 20/100×3500=700 and than he will get 5 percent profit than here

3500-700=2800

now for 5 % profit

5/100*2800=140

hence

20% discount=700

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4 0
2 years ago
Find the midpoint of the segment with the following endpoints.<br> (4, 2) and (7, 6)
Artist 52 [7]

The midpoint of the segment with the following endpoints, (4, 2) and
(7, 6) is (5.5, 4).

How to determine the midpoint of a given segment?
The center point of a straight line can be located using the midpoint formula. We can use this midpoint formula to determine the coordinates of the supplied line's midpoint in order to discover its location on a graph. Assuming that the line's endpoints are (x₁, y₁) and (x₂, y₂), the midpoint (a, b) is determined using the following formula:
(a , b) ≡ (((x₁ + x₂)/2), ((y₁ + y₂)/2))

Let the line segment be AB having endpoints as A(4, 2) and B(7, 6);
also let the co-ordinates of midpoint be C = (a, b)
Using the given formula in the available literature,
(a, b) = ((4 + 7)/2, (2 + 6)/2)
Equating parts of the previous equation, we get,
a = (4 + 7)/2 = 11/2 = 5.5
b = (2 + 6)/2 = 4
Thus, the midpoint of the segment is (5.5, 4).

To learn more about this, tap on the link below:
brainly.com/question/5566419

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4 0
1 year ago
How is a rational number converted to its decimal form?
luda_lava [24]

Answer:

Answer to first question is:

You can convert all fractions to decimals. The decimal forms of rational numbers either end or repeat a pattern. If the fraction is a mixed number, change it to an improper fraction. Divide the numerator by the denominator. If the division doesn't come out evenly, round the decimal off.

Answer to second question is: 0.222222

Answer to third question is: Yes

Step-by-step explanation:

Well the way I think of it is:

3/9 as a fraction is 1/3... so 1 divided by 3 equals 0.333333 repeating. You can even write it as:

   _

0.3 with the fraction bar over it because it keeps repeating.

This goes for 2/9. All you have to do is do 2 divided by 9 and you get 0.222222 repeating. You can even write it as:

<h3>   _</h3>

0.2 with the fraction bar over it because it keeps repeating.

Hope this helps, have a good day. c;


3 0
3 years ago
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