21 times what equals 84? Answer first and get brainliest

455.8125      or      [tex]\sf 455\frac{13}{16}[/tex]

follow the BODMAS rule:

Let's start!

(1+20-9/32)*((2+5)2+16/2)

remove brackets

(1+20-9/32)*(7*2+16/2)

division

(1+20-0.28125)*(7*2+8)

multiplication

(1+20-0.28125)*(14+8)

addition

(21-0.28125)*(22)

subtraction

(20.71875)*(22)

simplify

[tex]\sf 455.8125 \ \ \ or \ \ 455\dfrac{13}{16}[/tex]

Answer:

7293/16 or 455 13/16

Step-by-step explanation:

To solve this problem, we need to remember the BPEMDAS.

Where:

Solving the expression using PEMDAS:

[tex]\huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(}[2+5]2+\dfrac{16}{2} \huge{\text{)}[/tex]

[tex]\rightarrow \huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(}[7]2+\dfrac{16}{2} \huge{\text{)}[/tex]                                          [Brackets]

[tex]\rightarrow \huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(} 7\times 2+\dfrac{16}{2} \huge{\text{)}[/tex]

[tex]\rightarrow \huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(} 14+\dfrac{16}{2} \huge{\text{)}[/tex]                             [Parenthesis multiplication]

[tex]\rightarrow \huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(} 14+8\huge{\text{)}[/tex]

[tex]\rightarrow \huge{\text{(}\dfrac{160}{160} +\dfrac{3200}{160} -\dfrac{45}{160}\huge{\text{)} \times \huge{\text{(} 22\huge{\text{)}[/tex]                                    [Parenthesis Add]

[tex]\rightarrow \huge{\text{(}\dfrac{3315}{160}\huge{\text{)} \times \huge{\text{(} 22\huge{\text{)}[/tex]                                                [Parenthesis Add/Subtract]

[tex]\rightarrow \dfrac{3315}{80} \times 11 = \dfrac{663}{16} \times 11[/tex]                

[tex]\rightarrow \dfrac{7293}{16}[/tex]                                                                            [Multiplication]    

To avoid confusion, let's convert the fraction into mixed fraction. Refer to image attached.

Answer:

C

Step-by-step explanation:

you can remove the brakets in C and it simplifies down to whats in B

Answer:

Last one: 3(x) - 3(9)

3(x - 9) = 3x - 27

Answer:

3(x)-3(9)

Step-by-step explanation:

Multiply each factor in the parenthesis for the external number

Answer:

6

Step-by-step explanation:

2

Answer:

5+1=6x9=54/3=18

Step-by-step explanation:

how this helps! :)

Answer:

is 214

Step-by-step explanation:

1. find the there side of outside, which are 6,7 and 5. 2 you have to multiplay 6x5, 7x5 6x7. 3 you got to add all, so is 107, however you have to multiplay by 2, so the answer is 214

Answer:

Solve for x first.

In order to solve for x, you must set up an equation where the two interior angles (1 and 2) are equal to the exterior angle (3).

Interior angles.

Exterior angle:

Set up the equation:-

(3x + 7) + (2x + 24) = 6x + 10

Group and combine like terms;

(3x + 2x) + (7 + 24) = 6x + 10

5x + 31 = 6x + 10

Get rid of constants;

-10             -10

5x + 21 = 6x

-5x         -5x

21 = x, the value of 'x' is 21°.

Now we plug in the value of x into angle 3's equation.

∠3 = 6x + 10

∠3 = 6(21) + 10

∠3 = 126 + 10

∠3 = 136°, ∠3 = 136°.

Answer:

C. y = 4.5x

Step-by-step explanation:

The recipe calls for 4.5 teaspoons of sugar to make each cup of pudding. To make 2 cups of pudding, we would need two groups of 4.5 teaspoons, or 4.5+4.5=9 teaspoons of sugar. To make 3 cups of pudding, we would need 3 groups of 4.5 teaspoons, or 4.5+4.5+4.5=13.5 teaspoons of sugar. This repeated addition can be simplified as multiplication, because 4.5+4.5=4.5*2. We will need y teaspoons of sugar to make x cups of pudding. For each cup of pudding, we need 4.5 teaspoons of sugar. So, y=4.5x. If we made 2 cups of pudding (meaning x = 2 now), we fill that in and solve for y, which equals 9, as seen at the start.

Answer:

C.  y = 4.5x

Step-by-step explanation:

Hope I helped!!

Answer:

Step-by-step explanation:

Answer:

A = picture attached

B = 51 in²

Step-by-step explanation:

I answered your other question, and I'm feeling lazy, so let me just copy + paste my answer here.

The picture attached is the answer for part A. You use the dimensions you already know from the first picture to fill in the net of the slice of pie.

Area of the triangle = 1/2 (base × height)

A = 1/2 (4 × 6) = 1/2 (24) = 12

The area of the triangle is 12. The top is a triangle, but the bottom is also a triangle with the same area. Therefore, the area of the two triangles combined is 24 in². Next, we have to find the area of the rectangle at the sides of the pie.

Area of rectangle = length × width

A = 5 × 2.5 = 12.

Since there are two rectangles with the same area on both sides of the pie, we can double it and get 25 in². We still have one rectangle left, the one at the back of the pie

A = 6 × 2.5 = 15

Add the areas altogether to get the answer.

24 + 12.5 + 15 = 51.5 in²

I hope this helps. Sorry if Part B's answer is wrong.

Answer:

19%, 13% 25% 28%

Step-by-step explanation:

6/32=

19%

5/32=

16%

4/34=

13%

8/32=

25%

9/32=

28%

Answer:

x = 15, y = 5

Step-by-step explanation:

total score of A = 6x

total score of B = 25*8 = 200

total score of C = 20y

(6x+200)/(x+25)=7.25

6x+200 = 7.25x+181.25

18.75 = 1.25x

x = 15

and

(6x+200+20y)/(x+25+20) = (6x+200+20y)/(x+45) = 6.5

plug in x

(290+20y)/60 = 6.5

290 + 20y = 390

20y = 100

y = 5

Answer:

B. (5,6)

Step-by-step explanation:

A dilation triples the coordinates which leads to (3,6) then you add 2 to the x value which gets you (5,6)

Answer:

8

Step-by-step explanation:

highest number-lowest number=range

Answer:

1/20

Step-by-step explanation:

2/5 ÷ 1/8 = 1/20

Answer:

Step-by-step explanation:

B 1/20

Answer:

B

Step-by-step explanation:

If I'm wrong?????

Answer:

x = 6

Sorry if this answer is not correct, if it is or is not, please tell me in the comments!

Step-by-step explanation:

All of the angles add up to 180 degrees (since it is a triangle), so

(11x - 3) + (7x + 5) + (13x - 8) = 180

Then, combine the like terms.

31x - 6 = 180

Now, out goal is to separate the x from everything. To do that, we need to add 6 to 180.

31x = 186

Then divide by 31.

x = 6

(Feel free to replace x with 6 back in the previous equation to double check it!)

Answer:

A

Step-by-step explanation:

The distance he jogs in kilometers would go by 7 every hour making it proportional relationship

Answer:

Option B and Option D

Step-by-step explanation:

B = 3*x = 3x, 3*15 = 45.

D=3* x + 15.

3x = 135 and x + 15 = 60 are the equations that are equivalent to 3x+45=180

Two or more expressions with an Equal sign is called as Equation.

We have to solve the equation  3x+45=180

Now isolate x on one side of the equation.

We can do this by subtracting 45 from both sides, giving us 3x=135, and then dividing both sides by 3 to get x=45.

Therefore, the equivalent equations are:

3x = 135

x + 15 = 60

Hence, 3x = 135 and x + 15 = 60 are the equations that are equivalent to 3x+45=180

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

By examining this image:

  ⇒ we see a right triangle made up of sidelength of h, 8, and 17

     ⇒ we know this is a right triangle because there is a little square

         ⇒between lines of length 8 and h

            ⇒ which indicates this angle is 90 degrees

               ⇒ which indicates we have a right triangle

Since we have a right triangle

   ⇒ we can use the Pythagorean Theorem

           *look at the image attached for a better explanation

Now let's form an equation (based on the Pythagorean Theorem)

   [tex]h^2 + 8^2 = 17^2\\h^2 = 17^2- 8^2h^2 = 289 - 64 = 225\\h^2 = 225\\h = 15[/tex]

Thus h = 15cm

Hope that helps!

Answer:

[tex]I~am~here![/tex]

5:14

This is the simplest form of all the fruits added together, being compared to peaches.

Answer:

S'= (0,-7)

Step-by-step explanation:

When reflecting coordinates across the x-axis, you would flip the sign of the y number (x,y) -> (x,-y). So in this case (0,7) -> (0,-7)

Answer:

2

Step-by-step explanation:

If you look at how many lines are lines up at the ten that is the answer

Answer:

2

Step-by-step explanation:

Answer:

A=4000

B=560

C=32

Step-by-step explanation:

500*8=4000

70*8=560

8*4=32

Answer:

A = 4000

B = 560

C = 32

574 x 8 = 4592

Step-by-step explanation:

To find the area of A, we must multiply 500 by 8 because those are the dimensions.

500 x 8 = 4000

Therefore, A = 4000

To find the area of B, we must multiply 70 by 8.

70 x 8 = 560

Therefore, B = 560

To find the area of C, we must multiply 4 by 8.

4 x 8 = 32

Therefore, C = 32

To find the total area, we can add the area of A, B, and C together.

4000 + 560 + 32 = 4592

I hope this helps and please mark me as brainliest!

Answer:

A and C

Step-by-step explanation:

To Find Total Light Blue Mixture

To Find How many containers he can fill

Answer:

c and a

Step-by-step explanation:

i did the test

Answer:

The 1st choice

Step-by-step explanation:

(a) the first and second ones are the only triangles with all three acute angles. The 2nd one has more than 1 line of symmetry so the 1st must be the answer.
(b) This one really depends on which side of the triangle is each length. One way to do it is A squared + B squared = C squared. 8 equals c because it is the largest side and 7.5 is A. This would be put out like 56.25 + B = 64. Subtract 56.25 from both sides to get B = 7.75.
OR, if 8 is not the longest side 7.5 squared + 8 squared = C squared which would be 120.25 = C squared. So, you would find the square root of 120.25 which is 10.97.

Answer:

The answer is A.

Step-by-step explanation:

You know this because you can count the lines from the middle to the right
then, you count from the middle up.
the middle to the right is the 1st digit and the number that goes from the middle up is the 2nd.

it is not negative because then you would go to the left.

Answer:

$2.4,

$7.68

Step-by-step explanation:

0.75x3.2=2.4

You increase by 2.2, when NOW you have 1. 1+2.2=3.2

The cost now is 2.4

2.4x3.2=7.68

Answer:

$2.4

$7.68

Step-by-step explanation:

0.75x3.2=2.4

You increase by 2.2, when NOW you have 1. 1+2.2=3.2

The cost now is 2.4

2.4x3.2=7.68