What are 10 examples of substitutes?

In the three column table the value of B is 20, and option I is the correct answer.

In general, the term "proportion" refers to a part, share, or amount that is compared to a total. According to the concept of proportion, two ratios are in proportion when they are equal. Two ratios or fractions are equal when an equation or a declaration to that effect is utilised.

From the information given, it's important to calculate the constant of proportionality. In this case, for C, we have 28 part and 40 whole, the constant will be:

Constant = Whole / Part

= 40/28

= 1.428

Therefore, the value of B will be:

Whole = Part × Constant

Whole = 14 × 1.428

B = 20

Hence in the three column table the value of B is 20, and option I is the correct answer.

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Answer:B=20

Step-by-step explanation:

i did the math

Answer: 4.17

Step-by-step explanation:

.

The solution is Option A.

The proportion is given by 21 : 35 : : 24 : 40

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

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

Given data ,

Let the proportion be represented as A

Now , the equation will be

a)

The four set of numbers are = { 21 , 35 , 24 , 40 }

Now , the ratio of 21/35 = 3/5

The ratio of 24 / 40 = 3/5

Therefore, the proportion is expressed as

A = 3 : 5

And , the proportion equation is

21 : 35 : : 24 : 40

Hence , the proportion is 21 : 35 : : 24 : 40

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The value of car to the nearest cent, after 16 years will  be $882.

The preceding table displays the increase in value of a car that cost $16,100 over time, where x represents the number of years and y represents the car's cash value.

The formula for the exponential regression will be as follows:

y = A₀e∧(kx)

Where k is a constant and A₀ is the exponential regression coefficient.

So value of y would be $16,100 if x = 0. Next, we have

16,100  = A₀ e∧(k*0)

A₀ = 16,100

The equation will then be:

y = 16,100e∧(kx)

Hence value of y would be $13,431 if x = 1. Next, we have:

13,431 = 16,100e∧(k*1)

e∧(k) = 0.834

Considering all sides, we then have:

ln e∧(k) = ln 0.834

k = -0.181

The equation will then be:

y = 16,100e∧(-0.181*x)

For 16 years,

y = 16,100e∧(-0.181*16)

y = 16100*0.054

After that, a car's value will be:

y = 882

Thus, the value of the car to the nearest cent, after 16 years will  be $882.

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We can write a function in terms of 'a' for the balance of Dani's savings account if she doesn't notice the monthly fee as:

f(a) = 200 - 5a

where 'a' represents the number of months that have passed since Dani turned 18 and the bank began charging her the monthly fee.

So, f(0) = 200 represents the initial balance in Dani's savings account when she turned 18.

f(1) = 200 - 5(1) = 195 represents the balance in Dani's savings account after 1 month.

f(2) = 200 - 5(2) = 190 represents the balance in Dani's savings account after 2 months and so on.

Therefore, the function f(a) = 200 - 5a represents the balance of Dani's savings account after 'a' number of months if she doesn't notice the monthly fee.

Let me know if this helps! :)

Answer:

180 m , ≈ 6.9 seconds

Step-by-step explanation:

let vertical distance be represented by d and time t

given d is directly proportional to t² , then the equation relating them is

d = kt² ← k is the constant of proportion

to find k use the condition , the ball falls 80 m in 4 seconds , then

80 = k × 4² = 16k  ( divide both sides by 16 )

5 = k

d = 5t² ← equation of proportion

(a)

when t = 6

d = 5 × 6² = 5 × 36 = 180 m

(b)

when d = 240

240 = 5t² ( divide both sides by 5 )

48 = t² ( take square root of both sides )

[tex]\sqrt{48}[/tex] = t , that is

t ≈ 6.9 seconds ( to the nearest tenth )

The additive inverse of 3/-7 is -3/7. This means that when 3/-7 is added to its additive inverse, the result is 0.

The additive inverse of any number is the number with the same absolute value but with the opposite sign. Therefore, the additive inverse of 3/-7 is -3/7. When two numbers are added together, the signs of the numbers can affect the result. For example, when two negative numbers are added, the result is a negative number. When two positive numbers are added, the result is a positive number. When one number is positive and one number is negative, the result depends on the relative size of the two numbers. For example, if the positive number is larger than the negative number, the result is a positive number. However, if the negative number is larger than the positive number, the result is a negative number. In the case of 3/-7, the negative number is larger than the positive number, so the result of adding 3/-7 to its additive inverse is 0.

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Answer:

simone  spends 7 hours a week

Step-by-step explanation:

Simone practices 1 hour every day

a week has 7 days, so

we multiply 7 x 1 = 7 hours per week

7= days of the week

1= hours simone practices every day

After responding to the question, we can therefore say that the numbers in the four-way tables are 4,8,12,16,20,24,28,32,36, and 40.

A mathematical table is a collection of numbers that shows the outcome of a calculation using multiple inputs. data with numbers and descriptions that is arranged in rows and columns. The table and 10 pattern are easy to remember. The following is the order of the numbers:2,4,6,8,10,12,14,16,18,20. Value maps are used to show how different data pieces are related to one another. You can incorporate the values table into your science lecture. Scientists and researchers use tables of values to store data and seek for patterns in that data. Then, this pattern is used in forecasting.

Here,

Thus,

table of four are as follows:

4,8,12,16,20,24,28,32,36 and 40.

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On solving the provided question, we can say that - there are 67 numbers less than 100 are divisible by 3, by divisibility test.

The divisibility rule is a concise and practical approach to check, often by looking at the integer's digits, whether a given integer is divisible by a given set divisor without actually executing division. Without actually doing the division procedure, you may quickly discover if a given number can be divided by a defined divisor using the divisibility test. When dividing two numbers exactly, the quotient must be an integer and the remainder must be zero.

= n(A ∪ B)

= n(A) + n(B) - n(A ∩ B)

= 33 + 50 - 16

= 67

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On solving the provided question, we can say that by trigonometry, t = [tex]4\pi /3[/tex]; x = cos([tex]4\pi /3)[/tex] = [tex]-\sqrt{2}/4[/tex] and y = sin([tex]4\pi /3)[/tex] = [tex]-3\sqrt{2}/11[/tex]

The area of mathematics known as trigonometry examines the correlation between triangle side lengths and angles. The area first appeared in the Hellenistic era, around the third century BC. from the use of geometry in astronomical study. The area of mathematics known as exact methods deals with specific trigonometric functions and how they might be used in calculations. There are six popular trigonometric functions in trigonometry. Sine, cosine, tangent, cotangent, secant, and cosecant are their respective names and acronyms (csc). Studying the characteristics of triangles, particularly right triangles, is called trigonometry. The study of geometry, however, is the characteristics of all geometric figures.

here,

by trigonometry,

t = [tex]4\pi /3[/tex]

x = cos([tex]4\pi /3)[/tex] = [tex]-\sqrt{2}/4[/tex]

y = sin([tex]4\pi /3)[/tex] = [tex]-3\sqrt{2}/11[/tex]

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Answer: x = 2, y = -3

Step-by-step explanation: From the question,

-3x -3y = 3 ---------- this becomes the first equation

Make y the subject

-3y = 3 + 3x

y = (3 + 3x)/ -3  ----------this becomes our second equation

Substitute the value of y into the first equation

-3x -3(3 + 3x) = 3

-3x -9 + 9x = 3

Collect like terms

-3x + 9x = 3 + 9

6x = 12

Divide both sides by 6

6x/ 6 = 12/ 6

x = 2

Substitute x = 2 into the second equation to find y

y = (3 + 3(2) )/ -3

y = ( 3 + 6) / -3

y = 9/ -3

y = -3

According to the table for a $150,000 mortgage, Lastri's credit score needs to improve by 62 points for her to take a mortgage for $150,000.

The credit score refers to an individual's or entity's creditworthiness rating.

The credit score predicts a person's credit behavior and ability to repay credit.

Financial institutions and lenders use the credit score to determine the amount of credit to offer a borrower, the attached credit risks, and the accompanying interest rate, including monthly payments.

Annual mortgage payments Lastri can afford = $13,900

Monthly payment = $1,158 ($13,900 ÷ 12)

Current credit score = 498

Minimum credit score for a monthly payment of $1,158 = 560

Additional credit score improvement = 62 (560 -498)

Thus, for Lastri to qualify for a $150,000 mortgage, her FICO credit score must improve by 62 points.

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Table

FICO              Interest    Monthly

Score               Rate      Payment

720 - 850       5.59%       $860

700 - 719        5.71%        $872

675 - 699       6.25%      $924

620 - 674       7.40%    $1,039

560 - 619       8.53%     $1,157

500 - 559      9.29%    $1,238

Hippocrates of Chios was the first to show that the area of a disk

Who discovered area formula?

In the 5th century BCE, Hippocrates of Chios was the first to show that the area of a disk (the region enclosed by a circle) is proportional to the square of its diameter, as part of his quadrature of the lune of Hippocrates, but did not identify the constant of proportionality.

A large part of the field of operations research is the use of statistical equations to solve problems in business or military operations.

Music, linguistics, and philosophy all use mathematical models (for example, intensively in analytic philosophy).

A model is, for example, the method for the area of a circle, πr2.

Radius of a circle is the distance from the center of the circle to any point on it's circumference. It is usually denoted by 'R' or 'r'. This quantity has importance in almost all circle-related formulas. The area and circumference of a circle are also measured in terms of radius.

Α= pi r^2

Divide each side by pi

A / pi = r^2

Take the square root of each side

sqrt( A / pi ) = sqrt(r^2)

sqrt( A / pi ) =r

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The expression 14 - 0.6t represents the number of gallons left for t number of days.

The variable t means the number of days.

In Mathematics, it is important to note that an expression is simply used to show the relationship between the variables that are provided or the data given regarding an information.

In this case, each day the car uses 0.6 gallons of fuel. A warning light comes on when the remaining fuel is 1.5 gallons or less. The expression is 14 - 0.6t.

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Complete question

Diego’s family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when the remaining fuel is 1.5 gallons or less.

Diego says the expression 14 - 0.6t helps him to understand this situation. What does this expression represent, and what does the variable t stand for

The lengths 3, 14, and 10 form a obtuse triangle

It's simpler than it seems to determine whether a triangle has three side lengths. The Triangle Inequality Theorem, which asserts that the sum of a triangle's two side lengths is always greater than the third side, will suffice. You will have a triangle if this holds true for each of the three possibilities of increased side lengths.

Theorem of Triangle Inequality. This theorem merely states that the third side of a triangle cannot be smaller than the total of the first two sides. You will have a valid triangle if this holds true for each of the three possible combinations. To confirm that the triangle is feasible, you will need to go through each of these combinations one at a time. Theorem a+b > c, a+c > b, and b+c > a can alternatively be thought of as an inequality. The triangle has sides of lengths a, b, and c.

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(150 + x) + 130 >= 150 is the inequality equation for the state legislature, which consists of senators and members.

Mathematics uses the term inequality to describe a link between two expressions or values that is not equal. Thus, imbalance is the cause of inequality. The relationship between two non-equal values in mathematics is established by an inequality. Egality and inequality are not synonymous. Whenever two values are not equal, use the not equal sign (). Various inequalities are used to compare values, whether they are small or large. You can eliminate a lot of simple inequalities by modifying both sides until only the variables are left. Inequality is brought on by a number of things, though: On both sides, subtract or multiply negative values. Alternate between left and right.

given

Number of senators: 130

Number of representatives: 150

more representatives than senators

(150 + x) + 130 >= 150 is the inequality equation for the state legislature, which consists of senators and members.

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The area of an 8 cm by 5 cm triangle is 20 cm^2.

The area of a triangle is calculated using the formula A = 1/2 * b * h, where b is the length of the base and h is the height. In this case, the base is 8 cm and the height is 5 cm, so the area of the triangle can be calculated as follows:

A = 1/2 * 8 * 5

A = 20 cm^2

Therefore, the area of an 8 cm by 5 cm triangle is 20 cm^2.

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The gymnast trains 5 hours per day making a total of 120 hours in a 4 week period

An equation is a expression that shows the relationship between numbers and variables.

Let x represent the number of hours practiced per day. A gymnast practices 6 days each week, hence:

Number of hours practiced per week = 6x

If she practices a total of 120 hours in a 4- week period. Therefore:

6x hours per week * 4 weeks = 120 hour

24x = 120

x = 5

The gymnast trains 5 hours per day.

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Answer:A

Step-by-step explanation:

Answer:

y / 4 + 6 = 2

Step-by-step explanation:

Answer:

-4/9

Step-by-step explanation:

Line f has the same slope as line e. Parallel lines have the same slope.

Line e has the slope -4/9.

Line f has the slope -4/9.

The frequency of the motion is given as follows:

0.0318 Hz.

A standard cosine function is defined as follows:

g(x) = acos(b(x+c))+d.

The coefficients have these following roles:

Hence we must look first at coefficient b to obtain the period of the function.

The coefficient b is given as follows:

b = 0.2.

Hence the period of the function is of:

p = 2π/0.2

p = 10π.

The frequency is one divided by the period, hence:

f = 1/10π

f = 0.0318 Hz.

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A constant of dilation is a number used to change the size of a figure while preserving its shape. It is also known as a scale factor.

The constant of dilation is used in a dilation transformation, a type of transformation that changes the size of a figure without changing its shape or orientation.

The constant of dilation is typically represented by the letter "k" and is a number greater than 0. If the constant of dilation is greater than 1, the dilation will increase the size of the figure. If the constant of dilation is less than 1, the dilation will reduce the size of the figure. And if the constant of dilation is equal to 1, the dilation will not change the size of the figure.

It's important to note that the constant of dilation is a factor that applies to all the points of the figure, and it's the same for all the points of a figure during a dilation transformation.

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Juan have to sell 4 fruit baskets to make enough money.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, Juan's Fundraising Progress Juan sold fruit baskets for $16.50 each and pencils for $1.50 each. His goal is to sell $300 worth of goods to pay for his trip's cost.

His goal is to sell $300, the pencil sold a total of $81, so the fruit basket will sell a total of 300-81=219

Las three week: 219-165 =$54

Fruit baskets for $16.50 per each

54/16.50 =3.27

So, he have to sell 4 fruit baskets to make enough money

Hence, Juan have to sell 4 fruit baskets to make enough money.

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"Your question is incomplete, probably the complete question/missing part is:"

Juan's Fundraising Progress Juan sold fruit baskets for $16.50 each and pencils for $1.50 each. His goal is to sell $300 worth of goods to pay for his trip's cost. How many fruit baskets will Juan need to sell the last three weeks to achieve his goal?

Answer:

25.774

Step-by-step explanation:

5 x 4.9 = 24.5

0.26 x 4.9 = 1.274

24.5 + 1.274 = 25.774