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FinnZ [79.3K]
3 years ago
7

WHY AM I DOING SCHOOL AT 2AM -.-

Mathematics
1 answer:
irakobra [83]3 years ago
5 0
The points go on the little lines. It’s hard to point out
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Write a system of equations and solve. Three times the first number minus two times the second number equals -7. The second numb
Fynjy0 [20]

Answer:

  • -1 and 2

Step-by-step explanation:

Let the numbers be x and y

<u>Three times the first number minus two times the second number equals -7:</u>

  • 3x - 2y = -7

<u>The second number equals one less than negative three times the first number:</u>

  • y = -3x - 1

<u>Substitute y in the first equation and solve for x:</u>

  • 3x - 2(-3x - 1) = -7
  • 3x + 6x + 2 = -7
  • 9x = -9
  • x = -1

<u>Find the value of y:</u>

  • y = -3(-1) - 1
  • y = 3 - 1
  • y = 2

The numbers are -1 and 2

8 0
3 years ago
What is the result of adding the system of equations?
irga5000 [103]
The answer should be A
4 0
4 years ago
John cut a paper square with a perimeter of 18 inches into two rectangles. The perimeter of one of the rectangles is 10 inches.
Lady_Fox [76]

Answer:

13.5 inches

Step-by-step explanation:

Perimeter of the paper square = 18inches

Perimeter of a square = 4s

4s = 18 inches

s = 18/4 = 4.5 inches

Therefore, each side of the square = 4.5 inches.

When the square is cut into 2 rectangles,

The perimeter of one of the rectangles is 10 inches.

Perimeter of the second rectangle = 2L + 2W

Let the length of the rectangle (L) = one side of the square = 4.5 inches

Width of the Rectangle = Length of the square/2 = 4.5 inches/ 2 = 2.25

Perimeter of the second rectangle = 2(4.5) + 2(2.25)

= 9 + 4.5

= 13.5 inches

4 0
4 years ago
What Rato is equivalent to 4 to 10
aksik [14]

Answer:

1 to 2.5

Step-by-step explanation:

4/2=2

10/2=5

2/2=1

5/2=2.5

so 1 is to 2.5

5 0
4 years ago
Can someone please help
andre [41]

Answer:

x ≥ 1  (how to graph is listed below)

Step-by-step explanation:

To find where we need to plot the line, we first need to solve the inequality for x:

-2x - 3 ≤ -5

(Add three to both sides)

-2x ≤ -2

(Divide both sides by -2, but we can't forget that whenever we multiple or divide by a negative number, the sign flips!)

x ≥ 1

To graph this on the number line, you would put a dot on the 1 and fill it in completely (you fill in the dot for a "___ and equal to" sign.     ex. ≥, ≤)

Then you would make an arrow from the dot to the right on the number line (this is because x must be greater than or equal to 1, so it must be facing in that direction)

8 0
3 years ago
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