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Answer:

-40 °F = -40 °C

Step-by-step explanation:

The formula F = 1.8C + 32 gives the temperature in degrees Fahrenheit (F) for a given temperature in degrees Celsius (C). There is one temperature for which the number of degrees Fahrenheit is equal to the number of degrees Celsius. Complete the equation you can solve to find that temperature and then use it to find the temperature. Use the variable C to represent the number of degrees Celsius where degrees Fahrenheit and degrees Celsius are the same. The equation is . The temperature for which the number of degrees Fahrenheit is equal to the number of degrees Celsius is °C.

F = 1.8 C + 32 (1)

There is one temperature for which the number of degrees Fahrenheit is equal to the number of degrees Celsius

Then,

F = C (2)

Substitute (2) into (1)

F = 1.8 C + 32 (1)

C = 1.8C + 32

Subtract 1.8C from each side

C – 1.8 C = 32

-0.8C = 32

Divide both sides by -0.8

C = 32 / -0.8

C = -40

Substitute C = -40 into (1)

F = 1.8C + 32 (1)

F = 1.8(-40) + 32

F = -72 + 32

F = -40

Therefore,

The temperature for which the number of degrees Fahrenheit is equal to the number of degrees Celsius is -40

That is,

-40 °F = -40 °C

Answer:

a = -36/7

Step-by-step explanation:

55 + 7a = 19

(55 - 55) + 7a = (19 - 55)

7a = -36

7a/7 = -36/7

a = -36/7  the fraction can't be simplified any further

Answer:

B. x=negative 7

Step-by-step explanation:

sana nakatulong :-)

Answer:

all are true because all are less than or equal to 10

Step-by-step explanation:

Answer:

5,3,2,10

Step-by-step explanation:

Answer:

16.07 milligrams

Step-by-step explanation:

From the question,

Using the formula of radioactive decay,

R/R' = 2ᵃ/ᵇ..................... Equation 1

Where R = Original mass of the polonium-210, R' = Final mass of polonium-210 after decaying, a = Total disintegration time, b = half life of polonium-210.

Make R' the subject of the equation

R' = R/(2ᵃ/ᵇ)................ Equation 2

Given: R = 100 milligrams, a = 1 years = 365 days, b = 138.39 days

Substitute these values into equation 2

R' = 100/(2³⁶⁵⁰⁰/¹³⁸³⁹)

R' = 100/(6.222)

R' = 16.07 milligrams of plonium-210

Answer:

Number of brownies = 30

Number of cookies = 15

Step-by-step explanation:

Given:

Cost of each brownie = $2

Cost of each cookie = $1.5

Total number of treats = 45

Total amount = $82.50

Find:

Number of cookies and brownie

Computation:

Assume;

Number of brownies = b

Number of cookies = c

So,

b + c = 45........eq1

2b + 1.5c = 82.50...........eq2

Eq1 x 2

2b + 2c = 90 ..................eq3

Eq 3 - Eq 1

0.5c = 7.5

c = 7.5 / 0.5

Number of cookies = 15

Number of brownies = 45 - Number of cookies

Number of brownies = 45 - 15

Number of brownies = 30

Answer:

-3 1/8

Step-by-step explanation:

This can be done by setting up the following equation. (I'm going to convert 1/4 to .25 to make things easier)

-1.25/1 = x/2.5

x = -3.125 or -3 1/8

Answer:

a = 12 years

Step-by-step explanation:

Mark is 6 years older than his brother Sam. Now, we are asked to represent Sam’s age by a. This means that if Sam is a years old, Mark is (a + 6) years old.

The sum of their ages is 30, this means that when we add their ages together, we get the sum of thirty.

Mathematically this means a + a + 6 = 30

2a + 6 = 30

This is the equation needed to get a. To get a , we proceed to solve the equation to completion.

2a = 30 - 6

2a = 24

a = 24/2

a = 12

Answer:

- 2

Step-by-step explanation:

3 ( x + 5 ) = 9

x + 5 = 9 / 3

x + 5 = 3

x = 3 - 5

x = - 2

Answer:

x = - 2

Step-by-step explanation:

Given

3(x + 5) = 9 ← divide both sides by 3

x + 5 = 3 ( subtract 5 from both sides )

x = - 2

Answer: A

Step-by-step explanation:

A follows the tenths, hundreds, and thousandths place correctly

Answer:

A. (1x100) + (8x 10) + (1x1)+(8x1)+(6x 10) +(3x 100)

Step-by-step explanation:

Answer:

2 ...........

Answer:

-5/9

Step-by-step explanation:

[tex]\frac{5}{9}[/tex] + ____ = 0

subtract [tex]\frac{5}{9}[/tex] from both sides of the equation

-[tex]\frac{5}{9}[/tex]               -[tex]\frac{5}{9}[/tex]

leaving you with

____ = - [tex]\frac{5}{9}[/tex]

Answer:

25.13 (to 2 d.p)

Step-by-step explanation:

Use the formula:

Length of arc = (angle/360) X 2πr

where: angle = 180 and r = 16÷2 = 8

Answer:

I think it's 34

Step-by-step explanation:

cuz you add 11 and 12 frequency

Given:

The expression is:

[tex]36x^3-22x^2-\_\_\_[/tex]

To find:

The values for the blank so that the greatest common factor of the resulting polynomial is [tex]2x[/tex].

Solution:

We have,

[tex]36x^3-22x^2-\_\_\_[/tex]

If the greatest common factor of the resulting polynomial is [tex]2x[/tex], then 2 and x must be factors of missing value.

In option A, 2 is a factor of 2 but [tex]x[/tex] is not a factor of 2. So, this option is incorrect.

In option B, 2 and [tex]x[/tex] are factors of [tex]4xy[/tex]. So, this option is correct.

In option C, 2 and [tex]x[/tex] are factors of [tex]12x[/tex]. So, this option is correct.

In option D, 2 is a factor of 24 but [tex]x[/tex] is not a factor of 24. So, this option is incorrect.

In option E, 2 is a factor of [tex]44y[/tex] but [tex]x[/tex] is not a factor of [tex]44y[/tex]. So, this option is incorrect.

It means the correct value for the given blank is either [tex]4xy[/tex] or [tex]12x[/tex].

Therefore, the correct options are B and C.

Answer:

12383838 is the answer

1000000

Answer:

6x+10

Step-by-step explanation:

2x×2(2x+5)

2x+4x+10

6x+10

Answer:

A

Step-by-step explanation:

You divide the diameter by 2 to get radius. So 5÷2=2.5

So then you multiply 2.5 by pi aka 3.14 so 2.5x3.14=7.85 So we rounds 7.85 to 7.9

Answer:

B. 15.7

Step-by-step explanation:

Circumference= 2×π×r

2×3.14×2.5 (half of 5 is 2.5)

=15.7

Answer:

C

Step-by-step explanation:

PQS is an Acute angle so it's obviously C because it's the closest angle.

Answer:

i would say B is the answer

Step-by-step explanation:

Answer:

A is the correct answer.

Step-by-step explanation:

V=l*b*h

=4 1/3 * 3 1/3 * 4 ft^3

=13/3 * 10/3 * 4 ft^3

=520/9

= 57 7/9

Answer:

Domain would be all real numbers

Step-by-step elelamation

Range would be either:  y ≥ -3 or y ≤ -3 depending whether the vertex is a minimum or a maximum

Answer:

B) The subset consists of all the matches where Manchester United won or lost.

Step-by-step explanation:

1 - Manchester united lost

2 - Manchester United won

4 - Manchester United won

6 - Manchester United lost

7 - Manchester United won

Hence, 1, 2, 4, 6, 7 consists of matches where Manchester United either won or lost.

Therefore, 1,2,4,6,7 is a subset of the sample space where Manchester United won or Lost

Answer:

The letter may be in different orders.

2 answers: "The subset consists of all the matches where there were no ties" and "The subset consists of all the matches where Manchester United won or lost"

Step-by-step explanation:

process of elimination. All the nonhighlighted matches are were there were ties. The highlighted ones have no ties and both teams lost or won.

Respuesta:

0.53

Explicación:

Para calcular la posibilidad del evento A: "ganar la rifa comprando todos los números múltiplos de 3 o 5", debemos usar la siguiente fórmula.

P(A) = casos favorables / casos posibles

Evaluemos primero todos los casos que son múltiplos de 3, entre 1 y 100: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99. En total son 33.

Ahora, evaluemos todos los casos que son múltiplos de 3, entre 1 y 100: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100. En total son 20.

El número total de casos favorables es 33 + 20 = 53.

El número de casos posibles es el total de números de 1 a 100, es decir 100.

Luego P(A) = 53/100 = 0.53.

Answer:

Length of side of square = 8 inch

Step-by-step explanation:

Given:

Length of rectangular wire = 9 inch

Width of rectangular wire = 7 inch

Find:

Length of side of square

Computation:

We know that same wire is used from square

So,

Perimeter of rectangle = Perimeter of square

2[l + b] = 4 x side

2[9 + 7] = 4 x Length of side of square

2[16] = 4 x Length of side of square

32 = 4 x Length of side of square

Length of side of square = 32 / 4

Length of side of square = 8 inch

Answer:

4 feet 10 in

Step-by-step explanation:

58/12= 4 10/12= 4 feet 10 in

Answer:

4ft 10in

Step-by-step explanation:

58/12 = 4 10/12