hello!! only the equations with stars by the numbers need to be done. you don’t have to do all 4 if you don’t have time but as much as u can do is so greatly appreciated!! i would need an image attached of a graph so i can fill it in! i will mark brainliest if done correctly xx “solve the equation by graphing. check your solution”

Answer:

q=quarters, d=dimes

q+d=8

.25q+.1d=1.25

Let's set the first equation to equal d.

d=8-q

.25q+.1(8-q)=1.25

Distribute.

.25q+.8-.1q=1.25

Combine Like Terms

.15q+.8=1.25

Subtract .8

.15q=.45

Divide by .15

q=3

Now, let's solve for d in the first equation.

d+3=8

Subtract 3, and you get d=5

So, there are 5 dimes and 3 quarters in Maribel's pocket.

Check: .25(3)+.1(5)=1.25

.75+.5=1.25

1.25=1.25 which is true.

Jordan has 3 quarters and 5 dimes in his pocket that total to $1.25.

Let's assume Jordan has x number of quarters and 8 - x number of dimes in his pocket.

Each quarter is worth 25 cents, so the value of the quarters is 25x cents.

Each dime is worth 10 cents, so the value of the dimes is 10(8-x) cents.

The sum of the values of the quarters and dimes should be equal to $1.25, which is 125 cents. So, we can set up the equation: 25x + 10(8-x) = 125.

Simplifying the equation, we get 25x + 80 - 10x = 125. Combining like terms, 15x + 80 = 125. Subtracting 80 from both sides, 15x = 45. Finally, dividing both sides by 15, we find x = 3.

Therefore, Jordan has 3 quarters and 8 - 3 = 5 dimes in his pocket.

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Answer:

We can use the equation:

amount of a given nutrient / % of recommended daily amount = recommended daily amount

Here, we know that 69 grams of carbohydrates is 22% of the recommended daily amount, so we can plug in the given values and solve for the recommended daily amount:

69 / 0.22 = Recommended Daily Amount

Recommended Daily Amount = 69 / 0.22 = 313.64 grams (rounded to one decimal place)

So, the total recommended daily amount of carbohydrates in grams is 313.6 grams.

Answer:

49 weeks

Step-by-step explanation:

y = mx + b

y is the total amount saved

x is the number of weeks

24.99 = .4x + 5.40  Solve for the number of months   Subtract 5.40 from both sides

24.99 - 5.40 = .4x + 5.40 -5.40

19.59 = .4x     Divide both sides by .4

[tex]\frac{15.99}{.4}[/tex] = [tex]\frac{.4x}{.4}[/tex]

48.975 = x

We cannot have 48.975 week, so at 49 weeks Davis will have enough money.

Answer:

49

Step-by-step explanation:

Pie graphs can be used to display percentages of an entire group and depict percentages at a certain moment. Customers contacted via the web = x(let) then.as a result, customers contacted online (chart = x = 100), 25 customers were reached by social media, or x/4

Pie charts can be used to show percentages for the whole group or for a specific time period.

In contrast to bar and line graphs, pie charts do not show changes over time.

The following pages provide descriptions of the various pie chart elements.

Since the slices of a pie chart represent different parts of the whole, their sum must always equal 100%.

Number of customers overall = 250 clients were contacted via email for every 500 customers contacted via phone, or 50% of phone contacts.

=(50÷100)×250

=125

Customers reached via social media

= total customers + 250 + 125 + x+1 = 500 x+1

=125 × 5

T=125

x=100.

Customers contacted via the web = x(let) then.

as a result, customers contacted online (chart = x = 100)

25 customers were reached by social media, or x/4

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As a result, slant asymptotes of y = x -4 are found to be the solution to the provided function problem.

Mathematics includes the study of numbers and their variations, equations and associated structures, and the regions and potential uses of geometry. A "function" is the connection between a collection of inputs that individually produce a related output. An output-input relationship known as a function is one in which each input leads to a single, identifiable outcome.

Here,

Because there are no restrictions on the kind of rational function, it is possible to build one from each of the 3 asymptotes.

In addition to the graphs of the linear equation it represents, this is shown in the accompanying graph. The function's asymptotes are these.

The horizontal points include x = -4 and

There are two horizontal asymptotes: y = 0 and

Y = x – 4 are the slant asymptotes.

Additional comments

In our example function, an exponential function is used. That isn't frequently thought of as a polynomial, despite the fact that it may be stated as an infinite degree polynomial. Most authors define a rational function in terms of the fraction of polynomials.

As a result, slant equipotential lines are y = x and are the answer to the given function problem.

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Answer:

1/70

Step-by-step explanation:

(63-40) (21-10) 23 11 23-22 1

(---------)-(--------)=------ - ------ = -------- = --

( 70 ) ( 35 ) 70 35 70 70

Answer:

103

Step-by-step explanation:

because its the actual answer

Answer: I believe the answer is A; 0.72

Answer: The largest marginal relative frequency is 0.90 and it represents the probability of an individual having brown hair given that they have brown eyes.

Step-by-step explanation:

The reason why 0.90 represents the probability of an individual having brown hair given that they have brown eyes is because the study shows that 90% of the people who have brown eyes also have brown hair. This is a conditional probability, which means that it is the probability of one event happening given that another event has already happened. In this case, the event of having brown hair is conditional on the event of having brown eyes. The probability of 0.90 is calculated by taking the total number of individuals with brown eyes and brown hair and dividing it by the total number of individuals with brown eyes. The number is large because 90% of the individuals with brown eyes have brown hair, it is the largest because it is the highest probability among the other marginal relative frequencies. This indicates that the majority of people with brown eyes also have brown hair

Answer:

  6

Step-by-step explanation:

You want to know how many chairs are usually around the table if 1 chair must be added to accommodate Mr. and Mrs. DiNapoli and their two sons and three daughters.

The number present for a family dinner is ...

  1 (Mr. DiNapoli) +1 (Mrs. DiNapoli) +2 (sons) +3 (daughters) = 7

If one chair is added to make 7, then there are usually ...

   7 - 1 = 6 . . . . chairs at the table

Step-by-step explanation:

answer is (a,s) = (14,8)

Answer: 18 horses and 16 chickens

Step-by-step explanation:

horses = h , chickens = c

h + c = 34

4h + 2c = 104, or simplified, 2h + c = 52

Now we just use systems of equations to solve. I will subtract the second equation from the first.

(2h + c = 52) -

(h + c = 34)

so simplified, our system becomes h = 18. Therefore, there are 18 horses. Now we can plug this value into h for any of the equations to get c, the amount of chickens.

18 + c = 34

c = 16.

Therefore, there are 18 horses and 16 chickens.

Answer:

5,3,3-1 the box are illustrate the the number of the triangle

The value of x in this equation is found to be 8±4√7.

What is Pythagoras theorem?

The hypotenuse's square is equal to the sum of the squares of the other two sides if a triangle has a straight angle (90 degrees), according to the Pythagoras theorem. Keep in mind that BC2 = AB2 + AC2 in the triangle ABC signifies this. Base AB, height AC, and hypotenuse BC are all used in this equation. The longest side of a right-angled triangle is its hypotenuse, it should be emphasized.

Here given in the question that one side of the wall 5 feet

So as it is a rectangular bedroom it can be split into 2 right-angled triangles.

So the hypotenuse of the triangle is 13 feet

Now using the Pythagoras theorem we can find out the length of the other wall

b²=h²-p²

(x-4)²+(x+6)² = (x+10)²

x²+16-8x+x²+36+12x = x²+100+20x

x²-16x-48=0

x= 8±4√7.

Hence The value of x in this equation is found to be 8±4√7.

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Step-by-step explanation:

what is the usual formula for the area of a triangle ?

it is

base × height / 2

so, we know the area (10 cm²).

when we use the formula, we get

10 = 5 × w / 2

20 = 5 × w

w = 20/5 = 4 cm

Answer:

the height is equal = 4 cm

Answer:

1) The vertex is the maximum value.

2) The axis of symmetry is x = negative one-half.

3) The domain is all real numbers.    

Step-by-step explanation:

Answer:

a) The population of interest in this situation is individuals who are following a weight loss diet plan.

b) There are several sources of bias in this study:

Self-report bias: Town A relies on self-reported weight loss, which may not be accurate as participants may not accurately report their weight loss or may exaggerate their progress.

Measurement bias: Town B uses a different method of measuring weight loss than Town A, which could introduce a bias in the results.

Selection bias: Participants in this study are self-selected, which means that individuals who are more motivated or more likely to succeed in the diet may be more likely to sign up for the study. This can lead to a bias in the results as the sample may not be representative of the population of interest.

Hawthorne effect: Participants in Town B may have changed their behaviors simply because they knew they were being weighed, which could lead to a bias in the results.

Placebo effect: Participants in Town A may have lost weight due to the mere act of participating in a study and receiving attention, which could lead to a bias in the results.

Answer:

11(c)-9

Step-by-step explanation:

The product is the result of multiplication, so the product of 11 and c looks like: 11*c or 11(c).

Nine less means subtract, so we simply subtract from the above to get:

11(c)-9 or I suppose another answer could be -9+(11(c))

Answer:

A and B

Step-by-step explanation:

You draw the points on the Cartesian plane and draw a straight line that passes through two of the drawn points, if ALL the drawn points are ON the drawn line, then it is a linear function,

If only ONE point lies outside the line, then it is NOT a linear function

Answer:

7x2−4x/5

Step-by-step explanation:

7x2−4x over 5

Therefore , to calculate the  average AVC, use the formula: TC at 0 output is 5, which equals fixed cost (FC) of 5.

The fixed cost per unit of output is known as the AFC, and the variable cost per unit of output is known as the AVC. We previously stated that Bob's Bakery can produce 100 loaves with FC = 40, VC = 500, and TC = 540. ATC = TC/Q = 540/100 = 5.4 as a result. Additionally, AVC = 500/100 = 5 and AFC = 40/100 = 0.4.

Here,

Total cost is equal to total fixed cost plus total variable cost, or TC.

In order to obtain the VC at each output, we must first subtract 5 from the TCs for all subsequent output levels.

AVC is now equal to VC divided by Q.

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The sum of the two matrices will be [tex]A+B = \left[\begin{array}{ccc}-1&-13&7\\5&-14&0\\7&1&4\end{array}\right][/tex]. The correct option is A.

A matrix, which is used to represent a mathematical object or an attribute of one, is a rectangular array or table containing numbers, symbols, or expressions that are organized in rows and columns.

The given matrices are:-

[tex]A = \left[\begin{array}{ccc}7&-6&2\\6&-5&-7\\2&-8&8\end{array}\right][/tex]

[tex]B = \left[\begin{array}{ccc}-8&-7&5\\-1&-9&7\\-5&9&-4\end{array}\right][/tex]

The sum of the matrix will be:-

[tex]A+B = \left[\begin{array}{ccc}(7-8)&(-6-7)&(2+5)\\(6-1)&(-5-9)&(-7+7)\\(2+5)&(-8+9)&(8-4)\end{array}\right][/tex]

[tex]A+B = \left[\begin{array}{ccc}-1&-13&7\\5&-14&0\\7&1&4\end{array}\right][/tex].

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The triangles are similar as follows:

ABC ~ DEF

The criteria is AA(angle angle)

Similar triangles are the triangles that have corresponding sides as a ratio of each other and corresponding angles congruent to each other.

Therefore, the corresponding angles of the triangles are suppose to be congruent and the corresponding sides in proportion for it to be similar.

Hence, If two triangles have two of their angles equal, the triangles are similar by AA(angle angle).

Therefore, the triangles are similar by AA.

Triangle ABC is similar to triangle DEF.

The criteria for the similarity is AA.

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The number of seats in the first, second and third aircraft are 561 seats,  497 seats and 842 seats respectively

A word problem is a mathematical exercise where significant background information on the problem is presented in ordinary language rather than in mathematical notation

Let F, S and T represent number of seats in the first, second and third aircraft respectively

We can set up three equations to represent the situation:

F = 64 + S   --- (1)

T = 2S - 152 --- (2)

F + S + T = 1900 --- (3)

Put (1) and (2) in (3):

F + S + T = 1900

(64 + S) + S + (2S - 152) = 1900

64 + S + S + 2S - 152 = 1900

4S - 88 = 1900

4S = 1900 + 88

4S = 1988

S = 1988/4

S = 497 seats

F = 64 + S

F = 64 + 497 = 561 seats

F + S + T = 1900

561 + 497 + T = 1900

1058 + T = 1900

T = 1900 -1058 = 842 seats

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Answer: A, B, and E can be used to satisfy the equation

Step-by-step explanation:

A applies because 45 is the same exact number as 45, so the equal sign accurately compares them.

B applies because that symbol means less than or equal to, and 45 is not less than but is equal to 45.

C does not apply because that symbol means is not equal to, but 45 is equal to 45.

D does not apply because that is the less than symbol, and 45 is not less than 45.

E applies because it is greater than or equal to symbol, and 45 is not greater than but is equal to 45.

F does not apply because that is the greater than symbol and 45 is not greater than 45.

Hope this helps!

Answer:

456.17

Step-by-step explanation:

Rounding to the nearest hundredths' is asking is the number given 456.173 closer to 146.170 or 146.171.   You can see that the number is closer to 146.170 which is the same number as 146.17

Rule

Look at the digit in the thousandths' place.  In this case 3.  If this number is 5 or greater round up, if this number is 4 or smaller round down.  We will round down.

456.17

Answer:456.17

Step-by-step explanation:

If the thousandth place is 5-9, for example 456.178, the answer rounded to hundredth place will be 456.18.

But if the thousandth place is 1-4, the answer rounded to hundredth will be 456.17.

So the answer is 456.17.

The equation that represents the linear function is y =32x

What is a linear equation explain?

An algebraic equation with simply a constant and a first-order (linear) term, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation.

                            The variables in the previous sentence, y and x, are referred to as a "linear equation with two variables" at times.

A linear function is represented as

                    y = mx + c

The slope is calculated as

          m = y₂ - y₁/x₂ - x₁

        m = 576 - 64/18 - 2

        m = 512/16

         m = 32

The linear equation is then calculated as

        y = 32( x - 2 ) + 64

         y = 32x - 64 + 64

          y =  32x

Hence, the equation that represents the linear function is y =32x

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The complete question is -

A linear function has the table of values shown. The information in the table shows the number of tickets sold on opening night of a movie as a function of the number of hours since the tickets have been on sale. Number of Hours (x) 2 6 18

Number of Tickets Sold (y) 64 192 576

1.Write the equation that gives the number of tickets sold, y, as a linear function of the number of hours, x, since the tickets have been on sale.

The scientific notation of the given number is 6.11×10⁻⁴. Therefore, option E is the correct answer.

Scientific notation is a method for expressing a given quantity as a number having significant digits necessary for a specified degree of accuracy, multiplied by 10 to the appropriate power such as 1.56×10⁷.

The given decimal number is 0.000611.

0.000611 in scientific notation, we get

6.11×10⁻⁴

Therefore, option E is the correct answer.

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