4/8+2/4= pls help you get 20 points if you do

Answer:

The possible number of students in Mrs. Hayko's class is limited to 15 or 30, as higher multiples of 15 would exceed the desired class size.

Step-by-step explanation:

a)

Let 'x' be the total number of students in Mrs. Hayko's class.

One-third of the students walk to school: (1/3)x.

The remaining students who do not walk to school: (2/3)x.

Four-fifths of the non-walking students take the bus: (4/5) * (2/3)x.

Simplify to find the fraction of students taking the bus: (8/15)x.

b)

Consider different values for 'x' to find a whole number of students taking the bus.

Start with a small number, such as x = 15.

Calculate the number of students taking the bus using (8/15)x.

If the result is a whole number, it's a possible class size.

Repeat with different values of 'x' until a whole number is obtained.

The possible number of students in Mrs. Hayko's class could be 15, 30, or any other multiple of 15.

The probability for the experiment shows that the bag contains 26 red marbles.

The probability of selecting two red marbles in one trial is given by:

P(RR) = (r / (r + 10)) * ((r - 1) / (r + 9))

The probability of selecting two green marbles is:

P(GG) = (10 / (r + 10)) * (9 / (r + 9))

The probability of selecting one red marble and one green marble is:

P(RG) = 2 * (r / (r + 10)) * (10 / (r + 9))

4r² - 141r - 900 = 0

r = (141 ± \(\sqrt\)(19881 + 14400)) / 8

r = (141 ± \(\sqrt\)(34281)) / 8

r = (141 ± 185) / 8

So the two solutions to the equation are:

r = (141 + 185) / 8

red = 26

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\(\qquad\qquad\huge\underline{{\sf Answer}}\)

Here we go ~

\(\qquad \sf  \dashrightarrow \: \sqrt{ - 25} \)

\(\qquad \sf  \dashrightarrow \: \sqrt{ - 1 \times 25} \)

\(\qquad \sf  \dashrightarrow \: \sqrt{ {i}^{2} \times 25} \)

\(\qquad \sf  \dashrightarrow \: 5i\)

so, correct choice is D

\( \sqrt{ - 25} \)

The equivalent value from the given options.

\( \sqrt{ - 25} \)

\( = \sqrt{ - 1\times 25} \)

\( = \sqrt{ {i}^{2} \times 25 } \)

\( = 5i\)

Therefore, the correct answer is option D

The graph of 3x-2y≤6 is the third graph, for 3x-2y<6 is the first graph, for 3x-2y>6 is the fourth graph and for 3x-2y≥6 is the second graph. The solution has been obtained using concept of linear inequality.

What is linear inequality?

A linear inequality is one that would produce a linear equation if the equals relation were used instead of the inequality. When multiplying or dividing both sides by a negative number in order to solve the inequality, the direction of the inequality is reversed. The entire set of solutions to an inequality is known as the solution set.

We are given for graphs, of which two graphs are dotted and two are simple straight line graphs.

The dotted graphs are drawn for the inequalities having < or >

Whereas the simple straight line graphs are drawn for the inequalities having ≤ or ≥.

Now, to notice the shaded pattern, we will see whether the equations are true for (0,0) or not

1. 3x-2y≤6

⇒ 0≤6

So, the equation is true for the point.

Hence, the third graph represents this equation.

2. 3x-2y<6

⇒ 0<6

So, the equation is true for the point.

Hence, the first graph represents this equation.

3. 3x-2y>6

⇒ 0>6

So, the equation is false for the point.

Hence, the fourth graph represents this equation.

4. 3x-2y≥6

⇒ 0≥6

So, the equation is false for the point.

Hence, the second graph represents this equation.

Hence, the graphs are matched with the inequalities.

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Since, there are multiple questions so, the question answered above is attached below.

Answer: a 9 = 131072

Step-by-step explanation:

Answer:

2b^3

Step-by-step explanation:

Answer:

Step-by-step explanation:

If the 2 is a number, then distribute it to the b^3 to get 2b^3.

If the 2 is an exponent, then multiply the 3 and 2 to get b^6.

Answer:

Brainliest please

Step-by-step explanation:

15 women= 12days

find 10 days,

12÷10×15= 18women in ten days

how many more women, subtract 18 women and 15 women

=3 is the answer

Answer:

None

Step-by-step explanation:

because Vernon has no friends to play them with

Answer:

Jacks scores 130 points

Jill scores 75 points

Step-by-step explanation:

J=Jacks score

K=Jills score

2K-20+K=205

So, we can do 3K-20=205

                            +20  +20

                                (cancel it out)

and we are left with 3K=225 which is K=75, so we do do 205-75=130(which is jacks score). To prove this we can do 75x2=150-20=130

Answer:

z =86

Step-by-step explanation:

The exterior angle of a triangle is the sum of the opposite interior angles

z + z-39 = z+47

2z-39 = z+47

Subtract z from each side

z-39 = 47

Add 39 from each side

z = 47+39

z =86

The given information is,

To find the required value of z.

Property we use,

The exterior angle of a triangle is the sum of the opposite interior angles.

Now we can get the value of z,

→ z + z-39 = z + 47

→ 2z-39 = z + 47

→ 2z -z = 47 + 39

→ z = 47 + 39

→ [z = 86]

Thus, the required value of z is 86.

Answer:

102

Step-by-step explanation:

Answer:

rocket ships

Step-by-step explanation:

rocket ships

obamnia

Answer:

a b c d are the answers

Step-by-step explanation:

The dependance on experience is reflected in the syntactic distinction between prior probability statements.

syntax refers to alphabet, while semantics refers to meaning. Syntax is the set of rules demanded to insure a judgment is grammatically correct; semantics is how one's wordbook, grammatical structure, tone, and other rudiments of a judgment coalesce to communicate its meaning. syntax is the arrangement or order of words, determined by both the pen's style and alphabet rules. consisting of or noting coinages that are combined in the same order as they would be if they were separate words in a corresponding construction The word blackberry, which consists of an adjective followed by a noun, is a syntactic emulsion.

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Answer:

pythagorean theorem

c^2(hypotenuse)=a^2(adjacent)+b^2(opposite)

=6^2+4^2

36+16

c^2=52

\(c = \sqrt{52 } \)

c=7.21

sorry if its wrong...just giving it a try

Answer:

Actually people the answer is 7.2 to and here is proof

Step-by-step explanation:

The basic method of objective personality tests involves the utilization of direct and undisguised self-reports, resulting in data with face validity.

Objective tests employ standardized questionnaires or inventories, where individuals provide responses based on their own perceptions and experiences. These responses are typically in the form of multiple-choice or Likert scale answers.

The test items are designed to assess various personality traits and characteristics. By gathering self-reported data, objective tests aim to provide an objective and standardized assessment of an individual's personality. This method enhances the reliability and validity of the test results, as they are based on individuals' own accounts rather than external observations or interpretations.

As a result, objective tests are widely used in personality assessment due to their practicality and ability to yield meaningful insights.

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Answer:

x = 2.5

Step-by-step explanation:

           y = -3x + 14   -----------(I)

3x - 5y = -25 -------------------(II)

Substitute y = -3x + 14 in equation (II),

             3x -5 ( -3x + 14) = -25

          3x  + 5 * 3x - 5*14 = -25

            3x  + 15x - 70      = -25    {Combine like terms}

                        18x - 70   = -25  

Add 70 to both sides,

                                 18x = -25 + 70

                                 18x = 45

Divide both sides by 18,

                                    x = 45 ÷ 18

                                   x = 2.5

Answer:

The value of x in the solution to the system of equations is x = 7.

Here's the explanation and verification:

Solve for X in the first equation:

Y = -3X + 14

X = (Y - 14) / -3

Substitute this expression for X into the second equation:

3X - 5Y = -25

3((Y - 14) / -3) - 5Y = -25

Simplify this expression:

Y + 42 / 3 + 5Y = -25

6Y + 42 / 3 = -25

Solve for Y:

6Y = -25 - 42 / 3

6Y = -25 - 14

6Y = -39

Y = -39 / 6

Y = -6.5

Substitute this value of Y back into the expression for X that you found in step 1:

X = (Y - 14) / -3

X = (-6.5 - 14) / -3

X = (-20.5) / -3

X = 6.83

Round the answer to the nearest integer, so X = 7.

Verification:

Now that you have found the values of X and Y, you can verify that they are a solution to the system of equations by plugging them back into the original equations and seeing if they make both sides equal.

Y = -3X + 14

Plug in X = 7 and Y = -6.5:

-6.5 = -3 * 7 + 14

-6.5 = -21 + 14

-6.5 = -7

3X - 5Y = -25

Plug in X = 7 and Y = -6.5:

3 * 7 - 5 * -6.5 = -25

21 + 32.5 = -25

53.5 = -25

Both equations evaluate to true, so X = 7 and Y = -6.5 is a solution to the system of equations.

The given variation y = 7x is a direct variation where any increase in the variable x also increases the value of the variable y.

The given variation is represented as -

y = 7x

We have to identify if the given variation is direct or inverse or joint or combined.

Let us first the different mathematical relationships mentioned here.

Now that we know the definitions of different types of variations, let us look into the given variation, which is -

y = 7x

We can see that the variable y is 7 times the multiple of another variable x. Thus, this is a case of direct variation such that any increase in the variable x also increases the value of the variable y.

Therefore, the given variation y = 7x is a direct variation type.

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.b- 15 = -12

b = 15 - 12

b = 3

. x - 5 = 7

x = 7 + 5

x = 12

. r + 6 = 11

r = 11 - 6

r = 5

. v/15 = 15

v = 15 × 15

v = 225

Answer:

3. b = 3

5. x = 12

7. r = 5

9. v = -225

Step-by-step explanation:

3. b - 15 = -12  

To get b by itself we have to add 15 to both sides.

b = 15-12

b = 3

5. x-5 = 7

To get x by itself we have to add 5 to both sides.

x = 5+7

x = 12

7. r + 6 = 11

To get r by itself we have to subtract 6 to both sides.

r = 11-6

r = 5

9. \(\frac{v}{15}\) = -15

To get v by itself we have to multiply \(\frac{v}{15}\) by its opposite reciprocal which is \(\frac{15}{1}\)

v = -15(15)

v = -225

__________________________________________________________

Hope this helps!!

If I am wrong, please tell me, I enjoy learning from my mistakes:)

Answer:

the slope should represent the fee of each class

.

the vertical intercept is the membership fee

Answer:

the y-inyetcept means the starting fee to join

and the slope means fee per class paid by the customers.

Step-by-step explanation:

Answer:

13.95 units

Step-by-step explanation:

\( \sin \: 35 \degree = \frac{8}{x} \\ \\ \therefore \: x \: = \frac{8}{\sin \: 35 \degree} \\ \\ \therefore \: x \: = 13.9475744 \\ \\ \therefore \: x \: = 13.95 \: units\)

If she receives $2 off the regular price, p. by using a coupon. her total cost, including 20% for tax and tip, is $9. then the regular price of the lunch special is $11.

Let's figure out why that is so. Romita gets a sushi lunch special at Yoshi's, with a coupon. Romita received a discount of $2 off the regular price, P.

         Let's assume that the price of lunch before the discount is $P.

 Therefore, after the discount, the cost of the lunch is (P - 2).

 Now, let's determine the total cost of the lunch. The price of the lunch is inclusive of 20% tax and tip. This implies that Romita's total cost is 120% of the final cost of the lunch.

    We can represent this information in the equation below:

             Total cost = 120% of (P - 2)

             Total cost = 1.2(P - 2)

    From the given information, we know that the total cost is $9.

    This means we can solve the equation for P.P = (9/1.2) + 2P = 7.5 + 2P = $11

         The regular price of the lunch special is $11.

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First make the denominator equal by doing Least common multiple. One the denominator gets the same then add and subtract the fraction number.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

Adding and subtracting fractions with unlike denominators is calculated as,

First make the denominator equal by doing Least common multiple. One the denominator gets the same then add and subtract the fraction number.

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Answer:

no it is not a trick question

Answer:111

Step-by-step explanation:

Sry don't knowww

The salesman's actual profit earnings after suffering a 5% loss due to damages when assembling the computer is $14,820.

Let's first calculate the original cost price of the computer to the salesman. We know that the salesman sold the computer for $15,600 and made a profit of 25%, which means that the selling price is 125% of the cost price.

Let the cost price of the computer be x.

Selling price = 125% of cost price

$15,600 = 1.25x

Solving for x, we get:

x = $12,480

So, the salesman's cost price of the computer was $12,480.

Now, the salesman suffered a loss of 5% due to damages when assembling the computer.

Loss = 5% of cost price

Loss = 5% of $12,480

Loss = $624

So, the actual earnings of the salesman after the loss is: $15,600 - $624 = $14,820.

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