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geniusboy [140]
3 years ago
7

When x= -1, what is the value of y?

Mathematics
1 answer:
solmaris [256]3 years ago
4 0

Answer:You need to give a equation first.

Step-by-step explanation:Equation please!

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Alex has a grid in the shape of a rectangle. he has right triangles. each right triangle has an area of 25 square millimeters an
Maurinko [17]
First you have to find the area of the rectangular grid. The area of a rectangle is length•width.
So:
A= 20•12
A= 240cm
Then you need to convert 240cm into mm.
240cm is 2400mm.

Then you need to figure out how many triangles can fit into the rectangle if all the triangles have an area of 25mm. So you divide 2400 by 25.
2400:25= 96

So Alex can fit 96 triangles into the grid.
4 0
3 years ago
There are two approaches to solving the equation -3x + 10 = 4x - 20
pashok25 [27]

Answer:

X =30/7

Step-by-step explanation:

The first way would be something like:

-7x + 10 = -20. The first thing we would do is to subtract 10 from both sides.

Therefore,

-7x+10-10=-20-10

Simplified, we get

-7x=-30

Remove the negative symbols

7x =30

x=30/7

Second example:

10=7x - 20

Add 20 to both sides.

10+20=7x-20+20

Simplified,

30=7x

x = 30/7

4 0
3 years ago
Read 2 more answers
The width of a rectangle is equal to m cm, but it’s length is five times greater than the width. Find the area of the rectangle.
Irina18 [472]

Area of rectangle is 5m^{2}\ cm^{2}

Step-by-step explanation:

Given,

Width of rectangle = m cm

As length is 5 times more than width;

Length of rectangle = 5m cm

Area of rectangle = Length x Width

Area\ of\ rectangle = 5m*m\\Area\ of\ rectangle = 5m^{2} \\As\ length\ and\ width\ both\ are\ in\ cm\,\ therefore\\Area\ of\ rectangle = 5m^{2}\ cm^{2}

Area of rectangle is 5m^{2}\ cm^{2}

Keywords: Area, Multiplication, Rectangle.

Learn more about rectangles at:

  • brainly.com/question/2115496
  • brainly.com/question/2115716

#LearnwithBrainly

3 0
3 years ago
Б)<br> Which label on the cone below represents the radius?<br> ОООО
lions [1.4K]
The radius is found on the letter C!

I hope this helped! Mark me Brainliest! :) -Raven❤️

6 0
3 years ago
The perimeter of a rectangle is 87 ft. The length is x ft and the width is 19 ft. What is the length of the rectangle, in feet?
marta [7]

Answer: The length is 24.5 feet.

Step-by-step explanation:

The formula for the perimeter of a rectangle is P = 2L + 2W.

Plug in the values you know

87 = 2L + 2(19)

Solve for L

87 = 2L + 38

subtract 38 from both sides

49 = 2L

divide both sides by 2

L = 24.5

3 0
3 years ago
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