There are 18 girls in Mr. Brimley's math class. If 40% of the students are girls, what is the best estimation for the number of boys in the class?
A. 20
B. 30
C. 40
D. 50

Answer:

The volume of the rectangular prism is 512 inches³

Step-by-step explanation:

Any cube has 6 square faces

Area of any square = L × L, where L is a length of each side

The volume of the cube = L × L × L

∵ The area of the top face of a cube = 16 inches²

→ Find which number multiply by itself = 16

∵ 16 = L × L

∵ 16 = 4 × 4

∴ L = 4 inches

Let us find the volume of 1 cube

∵ The volume of the cube = L × L × L

∵ L = 4 inches

∴ The volume of each cube = 4 × 4 × 4

∴ The volume of each cube = 64 inches³

∵ We will use 8 of this cube to make a rectangular prism

→ That means the volume of the rectangular prism is 8 times

   the volume of 1 cube

∴ The volume of the prism = 8 × volume of 1 cube

∵ The volume of each cube = 64 inches³

∴ The volume of the prism = 8 × 64

∴ The volume of the prism = 512 inches³

The volume of the rectangular prism is 512 inches³

Answer:

A

Step-by-step explanation:

Answer:

9y

Step-by-step explanation:

since the symbols are the same you just add and keep the symbol.

Answer:

Equal

Step-by-step explanation:

9.90 = 9.9

The difference is just decimal places

Evaluating the two values, both numbers 9.90 and 9.9 are equal.

Hence, the values 9.90 and 9.9 are equal.

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Answer: Either 8 dimes and 6 nickles, or 4 quarters and 10 pennies. Both combinations add up to $1.10.

Have a nice day

The 14 coins can be:

- 8 dimes and 6 nickels

Or

- 10 pennies and 4 quarters

Given,

14 coins make up $1.10

We need to find what are the 14 coins.

We have,

100 pennies = $1

20 nickels = $1

10 dimes = $1

4 quarters = $1

Find the coins that are worth $1.10

We have

10 dimes = $1

So,

1 dime = $0.10

8 dimes = $0.80 _____(1)

20 nickels = $1

So,

1 nickels = $0.05

6 nickels = $0.30 _____(2)

100 pennies = $1

10 pennies = $0.1 _____(3)

4 quarters = $1 ______(4)

From (1) and (2)

8 dimes + 6 nickels = $0.80 + $0.30

14 coins = $1.10

From (3) and (4)

10 pennies + 4 quarters = $0.1 + $1

14 coins = $1.10

Thus the 14 coins can be:

- 8 dimes and 6 nickels

- 10 pennies and 4 quarters

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Answer:

(fog)(x) = f(x)g(x) = x^2 * 1/x = x

Answer: 4x² + x - 2

Step-by-step explanation: First distribute the -2x into (1-3x) which = -2x + 6x²

Now let's work on the second part:

Distributing (2x + 3) to (3x - 2) = 6x² - 4x + 9x - 6. Combining like terms: 6x² - 4x + 9x - 6 --> 6x² + 5x - 6. Now let's combine the like factors of our two equations which equals

12x² + 3x - 6. Now reduce by dividing by 3 which gives us the final answer of:

4x² + x - 2.

Answer: X= 570

Step-by-step explanation:

      X

  _____         = 19

15   +   15  

Multiply both sides by 30

      30X

  _____         = 19 x 30

15   +   15  

Simplify

x=570

Answer:

5 people will be left to play

Answer: Out of 10 to 15 people played,  5 people are left to play

Answer:

3 GB

Step-by-step explanation:

If the cell phone plan cost $30 per month

then subtracting this amount from $60  we have

$60 - $30 = $30

it 1 GB costs $10

therefore dividing this amount with $30

we have

$30/$10 = 3

Alejandro can only afford 3GB per month.

Answer:

[tex]\frac{5}{1}[/tex]

Step-by-step explanation:

10:2 would be written as [tex]\frac{10}{2}[/tex] in fraction form.

We can simplify this fraction to 5 to 1.

[tex]\frac{10}{2}=\frac{10/2}{2/2}=\frac{5}{1}[/tex]

Hope this helps.

.74% ar least or else he would crumble

Answer: .74%

Step-by-step explanation: 1-0.26=0.74

Answer:

she was wrong because when you divide 1/2 by 1/6 its not the same as multiplying 1/6 by 2 but you do get the same answer its just the wrong equation

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

Any division problem is the same as a multiplication problem with the multiplier being the reciprocal of the denominator. So to divide 1/2 by 1/6, we could multiply 1/2 by (1/(1/6)) = 6/1. The result would be ...

  [tex]\dfrac{1}{2}\div\dfrac{1}{6}=\dfrac{1}{2}\times\dfrac{6}{1}=\dfrac{6}{2}=\boxed{3}[/tex]

__

Carla's mistake was inverting 1/2 instead of 1/6 in her solution to the problem.

The answer is 135

1+3+5=9(9 is a multiple of 3. To know if something is divisble by 3, you must add it and if it is a multipe of 3 it is divisble of 30

135 end with 5( If a number ends with 0 or 5 it is divible by 5)

Hope my explanation helps!

Answer:

3

Step-by-step explanation:

2n

3p

4q

Answer:

The one on top of me is wrong.

Step-by-step explanation:

There are 4 terms in this expression

Answer:

11/14

Step-by-step explanation:

Answer:

11/14

Step-by-step explanation:

Convert to common denominator then subtract the numerator

Answer:

m∠1 = 58°

m∠2 = 58°

m∠3 = 72°

Step-by-step explanation:

The sum of the interior angles of a triangle is equal to 180°. The vertical angles at Point Z are congruent and therefore their measures are equal.

Answer:

16.67%

Step-by-step explanation:

1. Take 1 divided by six : 1/6 = 0.16666 . . .

2. Multiply by 100 to get a percent: 16.67%

Answer:

0.8

Step-by-step explanation:

From the given information:

The population mean = 60

The standard deviation = 8

The sample size = 100

The sample distribution which follows a normal distribution is the set of values ​​taken by this statistic on each sample from the same population.

The standard deviation of the comparison distribution's = [tex]\dfrac{\sigma}{\sqrt{n}}[/tex]

The standard deviation of the comparison distribution's = [tex]\dfrac{8}{\sqrt{100}}[/tex]

The standard deviation of the comparison distribution's = 8/10

The standard deviation of the comparison distribution's = 0.8

Answer:

x(x³ + 2)(3x - 7)

Step-by-step explanation:

I got it right

The solution is Option D.

The equation is simplified as A = x ( 3x⁴ - 7x³ + 6x - 14 )

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

A = 3x⁵ - 7x⁴ + 6x² - 14x   be equation (1)

Now , on factorizing the equation , we get

Taking the common factor as x in the equation , we get

A = x ( 3x⁴ - 7x³ + 6x - 14 )

Therefore , the value of A is x ( 3x⁴ - 7x³ + 6x - 14 )

Hence , the equation is A = x ( 3x⁴ - 7x³ + 6x - 14 )

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Answer:

y=-1x+4

Step-by-step explanation:

Answer:

X= -7

Step-by-step explanation:

When you get X to one side and simplify you get -7

8x + 12 = 4 x - 16

Subtract 12 from both sides

8x = 4x - 28

Subtract 4x from both sides

4x = -28

Divide both sides by 4 to get rid of the coefficient so we know what x alone is equal to, instead of what we have currently which shows what 4 x's equals

x = -28/4

x = -7

1x = - 7

One x is equal to - 7 units.

Hope this helps,

Answer:

translation

Step-by-step explanation:

because it's only being moved left by one unit

Answer and explanation:

42. Statistic :A fitness center is interested in the mean amount of time a client exercises in the center each week

Statistic:the mean amount of time is an example of a statistic

Population:

43. Parameter :Ski resorts are interested in the mean age that children take their first ski and snowboard lessons. They need this information to plan their ski classes optimally.

Parameter: this is a number or measurable quantity that sets a condition, boundary or limit or scope such as the age in which children start snowboarding

Answer:

B

Step-by-step explanation:

Answer:

k' = (-3,0)

j' = (0,5)

l' = (-3,3)

Step-by-step explanation:

if you reflected over the x- axis

then the y points would would change to the opposite

k = (-3,0)

j = (0,-5)

l = (-3,-3)

my favorite color is grey with green. the colors look immaculate together, brown is also one of my favorites. if im being honest, i think all colors are beautiful, but grey,green,and brown are some of my favorites. thank you for the points luv, god bless you hun.

Answer:

E

Step-by-step explanation:

Answer: It's 129°

Step-by-step explanation: Because we know x and 51 are supplementary angles (add up to 180), We can do x + 51 = 180, to figure out that x is equal to 129°.

Hope this helps :)

Answer:

Corresponding Angles

Step-by-step explanation:

Answer:

$2.45 per gallon

Step-by-step explanation:

Divide to find the answer:

22.54 / 9.2 = 2.45