Which equation has a solution of x = 15?
A. X + 7 = 12
B. 15 + x = 10
C. 13 + x = 38
D. x + 24 = 39

Answer:

460

Step-by-step explanation:

The total number of passwords possible is given by the permutation equation A = 26 x 25 x 24 x 10 x 9

A permutation is an ordered arrangement.

The number of ordered arrangements of r objects taken from n unlike objects is:

Permutation nPr = ( n )! / ( n - r )!

Given data ,

Let the total number of passwords be represented as A

Now , the equation will be

The number of digits in the password = 5 digits

For the first three digits, he chooses different letters of the alphabet

So , total number of digits that are alphabets out of the 26 alphabets = 3

For the last two digits, he chooses a different number

between 0-9

The total number of digits that are numbers out of the 10 numbers = 2

So , the permutation will be

A = 26P3 x 10P2

Substituting the values in the equation , we get

The total number of passwords A = ( 26 )! / ( 26 - 3 )! x ( 10 )! / ( 10 - 2 )!

On simplifying the equation , we get

The total number of passwords A = ( 26 )! / ( 23 )! x ( 10 )! / ( 8 )!

And ,

The total number of passwords A = 26 x 25 x 24 x 10 x 9

Therefore , the value of A is 14,04,000

Hence , the permutation is 26P3 x 10P2

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Answer:

A

Step-by-step explanation:

the dots are not making a line

Answer:

Step-by-step explanation:

I think the easiest way would be to plot the points onto a graph. See the attached graph.

If you want to solve it, you can use the slope formula:

[tex]m = \frac{y2-y1}{x2-x1}[/tex]

Where m = slope

From the two points we are given:

(2, -1) -----> x1 = 2 , y1 = -1

(2,5) ----->  x2 = 2 , y2 = 5

Plug these values into the slope formula and you get:

[tex]m = \frac{y2-y1}{x2-x1}[/tex]

m = [tex]\frac{5 - (-1)}{2 - 2}[/tex] = [tex]\frac{5 + 1}{0} = \frac{6}{0}[/tex] = ∞

This means that the slope m = ∞. In other words, there is no slope or gradient because the line is vertical.

Answer:

x can be any number greater than 10, there are infinite solutions.

>, meaning x is greater than 10

The solution set to the inequality equation x > 10 has infinite number of solutions as x can have any value greater than 10

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.

Given data ,

Let the inequality equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

x > 10   be equation (1)

So , the value of x is given by set P = { 11 , 12 , 13 , 14 ... }

Therefore , the value of x is any number greater than 10 and the inequality relation has infinite number of solutions

Hence , the inequality equation is x > 10

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Answer:

You can use logic and proportion here

Step-by-step explanation:

10 bags ---> 20 days

∴ 100 bags ---> 20 days x [tex]\frac{100 bags}{10bags}[/tex]        

                   ---> 20 days x 10

                   ----> 200 days

Answer:

9/25

Step-by-step explanation:

56% = 56/100

56/100= 18/50

18/50 = 9/25

Answer:

[tex]\frac{14}{25}[/tex]

Step-by-step explanation:

56%

= [tex]\frac{56}{100}[/tex] ← as a fraction ( divide numerator/ denominator by 4 )

= [tex]\frac{14}{25}[/tex] ← in simplest form

Answer:

4 framed pictures

Step-by-step explanation:

Answer:

k-10>12

Step-by-step explanation:

the word difference means subtraction and since k comes first that means you have to subtract 10 from k and greater than means that the greater than or less than sign will face k-10,so you would have the equation k-10>12

Answer:

35g

Step-by-step explanation:

given,altogether 300g

box weight is 25 gram

know we know that

1 cake weight and box =300/5

1 cake weight =60 gram -25gram

cake weight =35g

Answer:

35

Step-by-step explanation:

3,250 - 2,100 = 1,150

( 1,150 ÷ 3,250 ) × 100 ≈ 35.4%

His answer and process are both incorrect because he needs to divide 10^-4 by 10^-3 to get 4*10^-1 and the answer is .025 times larger.

Answer:

i hope this helps

cell 1 is 0.0008 and cell 2 is 0.002

Step-by-step explanation:

Answer:

We know that:

Each mechanic can change the oil of 3 cars per hour.

The number of mechanics can change between 0 and a maximum of 4.

Then we can write the variable:

Y = number of oil changes per hour.

Y = 3*X

Where X is the number of mechanics working.

The independent variable is X (number of mechanics), because is the one that Zach can change, and the dependent is Y (number of oil changes) because this depends on the value of X.

Now, the domain will be: {0, 1, 2, 3, 4}

The possible numbers of mechanics working at the same time.

And for the range we must replace those values in our equation, and see the possible values of Y.

Y(0) = 3*0 = 0

Y(1) = 3*1 = 3

Y(2) = 3*2 = 6

Y(3) = 3*3 = 9

Y(4) = 3*4 = 12

Then the range is: {0, 3, 6, 9, 12}

Answer:

60-32

Step-by-step explanation:

i had the same thing

Answer:

169 feet²

$1.30

Step-by-step explanation:

Given that :

Amount Shawna has = exact cost of carpet = $219.70

Length per wall = 13 feets

a) How many square feet of carpet will she need?

Number of square feet of carpet :

13 feets * 13 feets = 169 feet²

B.) Cost of each square foot :

Total cost / number of square feet

$219.70 / 169 feet²

= $1.30

Answer:

18.11

Step-by-step explanation:

You have the base cost of 17$ then add that to .065 times 17$

Answer:

(-2x)-5x-9 = (-7x)-9

3x - 13 = 3x - 13 (you cannot simplify more)

Your question was wery wierd but i tried to answer best I could.

And also I dont know what you mean about "-+5"

Answer:

(-7x-9)+(3x-13)= -4x-22

Simplify the first one -2x-(5x)-9= -7x-9

Put the thing together that fit (Add the terms together)

Answer:

C

Step-by-step explanation:

The y intercept is the highest

Answer:

13

Step-by-step explanation:

I assume that we are talking about the points and lengths of a number line.

A is the starting point (-8).

B is the mid point (-4).

C is the end point (5).

To find the distance of AC, we take the absoulte value of any value if its negative and add.

|-8| + 5

8 + 5

13

Best of Luck!

Answer:

[C]

Step-by-step explanation:

Since y = 9x

So x need to be a number that will multiply and  y = 9

Going through all answer choices

since it y = 9

We can see that [A} and [B]  is wrong

Now [C] and [D]

We can see that [D] is wrong because it shows that x = 9 when y = 9

that left us with [C]

[C] shows x = 1 and y = 9

Which is True

1 * 9 = 9

2 * 9 = 18

3 * 9 = 27

Hence, [C] is the correct Answer

~Learn with Lenvy~

Answer:

Chocie A: beacause x does'nt equal y

Answer:

$4.13

Step-by-step explanation:

let x = the regular price of tickets

23x-4=184

subtract 4 from each side

23x=180

divide 23 by each side to get x by itself

x= $.13 per ticket add 4 because she got $4 off

the original price is $4.13

Answer:

The answer is 10

Answer:

10

Step-by-step explanation:

by using the distance formula we can conclude that the distance between points a and b is 10 units

Simplifying

f(x) = 6x5 + 5x4 + 4x

Multiply f * x

fx = 6x5 + 5x4 + 4x

Reorder the terms:

fx = 4x + 5x4 + 6x5

Solving

fx = 4x + 5x4 + 6x5

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.

f = 4 + 5x3 + 6x4

Simplifying

f = 4 + 5x3 + 6x4

Solution:

~Refer to image~

We know that:

[tex]\bullet \ \ \ \text{Volume of right triangular prism} = \text{Area of triangle} \times \text{a}[/tex]

[tex]\bullet \ \ \ \text{Area of triangle} = \dfrac{1}{2} \times \text{Base} \times \text{Altitude }[/tex]

When looking at the triangle, we can tell that:

[tex]\bullet \ \ \ \text{Base} = 8 \ \text{ft} \\\\ \bullet \ \ \text{Altitude} = 6 \ \text{ft} \\\\ \bullet \ \ \text{a} = 12 \ \text{ft}[/tex]

Substitute the base, height, and altitude in the formula:

[tex]\bullet \ \ \ \text{Volume of right triangular prism} = \text{Area of triangle} \times \text{a}[/tex]

[tex]\bullet \ \ \ \text{Volume of right triangular prism} = \huge{\text{[}\dfrac{1}{2} \times 8 \times 6\huge{\text{]} \times 12[/tex]

Solve for the volume:

[tex]\bullet \ \ \ \text{Volume of right triangular prism} = \huge{\text{[}4 \times 6\huge{\text{]} \times 12[/tex]

[tex]\bullet \ \ \ \text{Volume of right triangular prism} = \huge{\text{[}24\huge{\text{]} \times 12[/tex]

[tex]\bullet \ \ \ \boxed{\text{Volume of right triangular prism} = 288 \ \text{ft}^{3} }[/tex]

Area of base:-

Volume:-

Answer: Need better instructions Sorry

Step-by-step explanation:

Answer:

26.725 x 1.07 = 28.59575

cost = 28.58575 $

Step-by-step explanation:

ye thanks for the correct answer!

Answer:

144 cm squared

Step-by-step explanation:

For this question, use the formula for area of a triangle (A = 1/2 * base * height)

Plug in the numbers you have, and A = 1/2 * 18 * 16, or 144 cm squared.

Hopefully this helps - let me know if you have any questions!

Answer:

y=1/3x+5

Step-by-step explanation:

x-3y=-15

-3y=-x-15

y=(-x)/(-3)-(15)/(-3)

y=1/3x+5

Answer:

1.50

Step-by-step explanation:

13.50/9=1.50

Answer:

$1.50 per product

Step-by-step explanation: