What is the inverse of addition

Answer:

10 classrooms

Step-by-step explanation:

Divide it.

If each class needs 1 gallon, 10/1=10

Answer:

Most of the musicians started to play at age 9 or older

The required figure is attached below :

Answer:

138 feet²

Step-by-step explanation:

To obtain the amout of rubber flooring needed to cover the floor, we take the area of the figure below :

A breakdown of the first gure is also attached below :

Area of rectangle (1) = Length * width = 15 feets * 6 feets = 90 ft²

Area of rectangle (2) = length * width = 6 feets * 8 feets = 48 feets

Area 1 + Area 2

90 feet² + 48 feet² = 138 feet²

Answer:

(a) y = (p - 3x) cm

(b) p = 35 cm

Step-by-step explanation:

Total length of the ribbon = p cm

The length of the first part = x cm

The length of the second part = 2x cm

Let the length of the third part be represented by y.

(a) Thus,

x + 2x + y = p

3x + y = p

y = p - 3x

An expression for the length of the third part is (p - 3x) cm

(b) If x = 10 cm, then;

length of first part = 10 cm

length of the second part = 2x

                                           = 2(10)

                                           = 20 cm

But,

length of the second part = 4y

i.e 20 = 4y

y = 5 cm

The value of p = 10 + 20 + 5

                        = 35 cm

p = 35 cm

Answer:

81

Step-by-step explanation:

To do "how many times greater" problems, you divide.  Think how you would answer this:  How many times greater is 48 than 6?  Dividing the larger 48 by the smaller 6 gives 8.  48 is 8 times greater than 6.

Do the same thing for these two masses.

6 x 10^24 divided by 7.4 x 10^22 is about 81.

The attached image shows a TI-83 display.

Answer:

6/7

Step-by-step explanation:

....................

the answer is 216.81 I looked it up on a calculator

Answer: x= 16

Step-by-step explanation:

2x+ 36 + 7x = 180

9x= 144

x= 16

Step-by-step explanation:

hope this helped you :)) !!

Answer:

10x - 20

Step-by-step explanation:

5(2x - 4)

5(2x) = 10x

5(-4) = -20

Combined:

10x - 20

Answer:

Time spend in walking = 3.2 hour = 3¹/₅ hour

Step-by-step explanation:

Given:

Total time taken = 4 hour

Speed when run = 8 mph

Speed when walk = 2 mph

Find:

Time spend in walking

Computtaion:

We know that;

Time = Distance / Speed

Assume;

One side distance = D

So,

D/8 + D/2 = 4

2D + 8D = 64

10D = 64

D = 6.4

So,

One side distance = 6.4 mile

Time spend in walking = One side distance / Speed when walk

Time spend in walking = 6.4 / 2

Time spend in walking = 3.2 hour = 3¹/₅ hour

Answer:

0.75(x-18)=84.5

And

0.75x-13.5=84.5

On both of them, x = 130.6 and on the other answer choices it’s different answers those 2 equal the same only

Step-by-step explanation:

hope this helps

Answer:

area of the pyramid

(15×15)+(2×15×20)

225.+600

825 ft²

Answer:

El cliente puede ordenar una comida en 60 formas distintas.

Step-by-step explanation:

El cliente escoge una entrada de las cinco opciones disponibles, luego un plato principal de cuatro opciones disponibles y un postre de tres opciones disponibles. Es costumbre consumir primero una entrada, después un plato principal y finalmente, un postre.

Estadísticamente hablando, se debe considerar un producto de tres combinaciones, puesto que el orden no importa a la hora de pedir, como sigue:

[tex]n = _{5}C_{1}\times _{4}C_{1}\times _{3}C_{1}[/tex] (1)

Donde:

[tex]n[/tex] - Total de combinaciones al ordenar una comida (entrada, plato principal, postre)

[tex]_{5}C_{1}[/tex] - Combinaciones posibles para pedir una entrada.

[tex]_{4}C_{1}[/tex] - Combinaciones posibles para pedir un plato principal.

[tex]_{3}C_{1}[/tex] - Combinaciones posibles para pedir un postre.

Ahora, desarrollamos la operación:

[tex]n = \frac{5!}{(5-1)!}\times \frac{4!}{(4-1)!} \times \frac{3!}{(3-1)!}[/tex]

[tex]n = 5\times 4\times 3[/tex]

[tex]n = 60[/tex]

El cliente puede ordenar una comida en 60 formas distintas.

Answer: Just do 2355

Step-by-step explanation: its that

Answer:

Oh my ga- srsly!? You need help with that!?

Step-by-step explanation:

The other answer another user gave is INCORRECT.

Go ask your teacher for help, tell me what you know. I'll help you in the comments.

Answer: −5 4/5

Step-by-step explanation: I used m.a.t.h.w.a.y

Answer:

-1   3/8

Step-by-step explanation:

Answer:

-3,7

Step-by-step explanation:

See the Image below:)

Answer:

no

Step-by-step explanation:

no they are not they are hard

Answer:

yes they are easy. Do you need the answers? If so just let me know in the comments and i'll edit this answer with the answers =D

Answer:

The answer is $5450 per month

Answer:

D

Step-by-step explanation:

92(23 + 36)

92(59)

92*59=5428

Answer: D. 5,428

Step-by-step explanation:

According to the rules of Order of Operations we first solve the problem in parentheses.

23+36=59

Then we multiply that number by 92.

59 x 92 = 5,428

Answer:

Hellooooooooooooooooooooo!!!!!!!!

Answer:

maaaaaaaaaaaaaaaaaaa!!!!!!!!!??????!!!

Answer: A=5 B=4

Step-by-step explanation: 4a+4=20+b

If a = 5 and b = 4

then the equation would be:

20+4=20+4

24 = 24

That works out to be true

Answer:

75

Step-by-step explanation:

20x30=600/8=75

Answer:

6

Step-by-step explanation:

The perimeter of ABC is 36 so each side is 12 cm. Since the vertices of DEF are the midpoint, then the side EF is 6 cm

Answer:

c

did the test got it right.

Step-by-step explanation:

Answer:

624ft

Step-by-step explanation:

yeah you're welcome

484ft ^2

10x12x0.5=60

14x13=182

182+60=242 ft^2

242ft^2x2=484 because there are 2 of each of the visible sides

edit i messed up and changed my answer  

Answer:

1 1/2

Step-by-step explanation:

2 2/3 - 1 1/6 = ?

The LCD here is 6.  Convert 2 2/3 so that the denominator is 6:

2 2/3 = 2 4/6

Then subtract 1 1/6 from 2 4/6:  We get 1 3/6, or 1 1/2