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3 years ago

DRAW AN AREA MODEL WITH THIS EQUATION PEOPLE LITERALLY JUST SOLVE THE MULTIPICATION

Mathematics

2 answers:

Iteru [2.4K]3 years ago

7 0

Answer:

You need four squares.

On the top left square, you put the number 20 over it, and the number 30 to its left. Put the number 600 in the square.

Next, the bottom left square. But the number 4 on the left side of the square, and put the number 80 in the square.

Now, the top right box. put the number 8 over it, and fill it with the number 240.

Last, fill the bottom right square with the number 32.

Andrew [12]3 years ago

6 0

Answer:

Draw a rectangle with one side equal to 28 and the longer side equal to 34

Step-by-step explanation:

Draw a rectangle

On the small line, make it equal to 28

On the longer lines make it equal to 34

You might be interested in

Use matrix inversion to solve the collection of systems of linear equations. HINT [See Example 4.] (a) −x − 4y + 2z = −10 x + 2y

omeli [17]

Answer:

Step-by-step explanation:

given is a system of linear equations in 3 variables as

$-x - 4y + 2z = −10\\ x + 2y - z = 11 \\x + y - z = 14$

This can be represented in matrix form as

AX=B Or

$\left[\begin{array}{ccc}-1&-4&2\\1&2&-1\\1&1&-1\end{array}\right] *\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}-10\\11\\14\end{array}\right]$

So solution set

X would be $A^{-1} B$

|A|=-1(-1)+4(0)+2(-1)=--1

Cofactors of A are

-1 0 -1

-2 -1 -3

0 1 2

So inverse of A is

1 2 0

0 1 -1

1 3 -2

Solution set would be

x=12

y=-3

z=-5

8 0

3 years ago

Slope=10,y-intercept = - 5

marin [14]

Answer:

the equation of the above is

y= 10x - 5

7 0

2 years ago

Holly made 12 pair of earrings for each of her girlfriends. To wrap the pairs individually, she creates a simple cardboard gift

Mekhanik [1.2K]

Answer:

3280cm²

Step-by-step explanation:

We are told the gift box is folded into a Pyramid with a square base.

Hence, we are to find the Surface Area of a square pyramid

From the question, we are given:

Length of the base of the square = 10cm

Triangle

Side length = 10cm

Height = 8 2/3 cm

A square Pyramid has 5 faces: 4 triangles and 1 square.

Step 1

Find the Area of the square

Formula = Side length² this is because all the side of a square is equal.

Length of the base = 10cm

Area of the square = (10cm)²

= 100cm²

Step 2

Find the Area of the triangle. We are told the 4 triangles are equilateral, which means their side are equal.

Hence, for one triangle.

Area of a triangle = 1/2 × base × height

Base = side length = 10cm

Height = 8 2/3 = 8.6666666667cm

Area of a triangle = 1/2 × 10 × 8.6666666667

Area of a triangle = 43.333333333cm²

Since we have 4 triangles

We would have : 4 × 43.333333333cm²

= 173.33333333cm²

The Area of the 4 equilateral triangles =

173.33333333cm²

Step 3

The Surface area of the Square Pyramid

= Sum of the areas of all the faces.

= 100cm² + 173.33333333cm²

= 273.33333333cm²

Therefore, the minimum amount of cardboard needed to make one gift box = 273.33333333cm²

Step 4

The minimum amount of cardboard Holly needs to create 12 gift boxes to wrap each pair of earrings individually is calculated as: 12 × 273.33333333cm²

= 3280cm²

7 0

3 years ago

Camden has an action figure collection of 380 action figures. He keeps 55% of the action figures on his wall. How many action fi

svet-max [94.6K]

209 action figures on his wall

380/100 = 3.8
so there would be 3.8 action figures per 1%
then 3.8*55 =209

6 0

3 years ago

2(b+3)=2 solve and check solution

Alexxandr [17]

2(b+3) = 2
2b + 6 = 2 ( -6 )
2b = -4 ( / 2)
b = -2

5 0

3 years ago

DRAW AN AREA MODEL WITH THIS EQUATION PEOPLE LITERALLY JUST SOLVE THE MULTIPICATION ​

DRAW AN AREA MODEL WITH THIS EQUATION PEOPLE LITERALLY JUST SOLVE THE MULTIPICATION