5x+3-2x=7x+3 sometimes always never

Answer:

40%

Step-by-step explanation:

100 is 4p% of 250

hope it helped!

Answer:

Step-by-step explanation:

It's pretty obvious.

You need to add 2 fractions up.

If it's lower than 5/8, then you are correct.

Answer:

8feet

Step-by-step explanation:

Given the height of the cabin modeled by the equation;

H(t)= -16cos(3.14t/45)+24

at the maximum height dH/dt = 0

dH/dt = 3.14/45(16)sin(3.14t/45)

dH/dt = 1.116sin(3.14t/45)

0 = 1.16sin(3.14t/45)

sin3.14t/45 = 0/1.16

sin3.14t/45 =0

3.14t/45 = arcsin0

3.14t/45 = 0

3.14t  = 0

t = 0seccs

Substitute t = 0 into the expression

H(t)= -16cos(3.14t/45)+24

H(0)  = -16cos(3.14(0)/45)+24

H(0) = -16cos0 + 24

H(0) = -16+24

H(0) = 8feet

Hence the maximum height of the cabin is 8feet

Step-by-step explanation:

the correct answer is option a 6a-7

Answer:

$17.70

Step-by-step explanation:

$15.00×18%=$2.70

$15.00+$2.70=$17.70

11. The area difference between them is 96 square units (192 - 96).

12. The trough stands 4 feet tall.

11. The area of Figure A is 96 square units (12 x 8) and the area of Figure B is 192 square units (16 x 12). The difference in their areas is 96 square units (192 - 96).

12. Let the height of the trough be h. The volume of the trough is given by the formula:

Volume = base area x height

Substituting the given values:

96 = 24h

Dividing both sides by 24:

h = 4

Therefore, the trough is 4 feet tall.

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Answer:

B) (5)(7)

Step-by-step explanation:

The total cost is $35.00

Helping in the name of Jesus.

Answer: A percentage is a way of expressing a number as a fraction of 100. It is denoted by the symbol % and is used to indicate a proportion or a part of a whole. For example, 50% means 50 out of 100, or half of a whole. Percentages are commonly used in a variety of contexts, including finance, mathematics, statistics, and everyday life. They are used to express changes in quantity or value, to calculate interest rates, to compare different amounts or values, and to represent probabilities and percentages in statistics.

Step-by-step explanation:

Answer:

Sure, here's a longer and cooler explanation of percentages:

In our everyday lives, we often encounter situations where we need to compare one quantity to another. For example, we might want to know what percentage of a pizza we've eaten, or what percentage of our salary goes towards taxes. That's where percentages come in – they allow us to express one quantity as a fraction of another, using a common base of 100.

So, what is a percentage, exactly? At its most basic level, a percentage is simply a way of expressing a fraction with a denominator of 100. For example, if we say that 25 out of 100 people like pizza, we can also say that 25% of people like pizza. The symbol "%" is used to represent a percentage, so we would write this as "25%".

But percentages are more than just a shorthand way of writing fractions – they also allow us to easily compare different quantities, even if they have different units. For example, if we know that a product has a 20% discount, we can easily calculate the sale price without needing to know the original price. Similarly, if we know that a city's population has increased by 10%, we can compare this to the population of another city, even if the actual numbers are different.

Percentages are used in a wide range of fields, from finance to science to sports. In finance, percentages are used to calculate interest rates, inflation, and stock market returns. In science, percentages are used to express probabilities, error margins, and experimental results. And in sports, percentages are used to compare player statistics and determine playoff rankings.

In short, percentages are a powerful tool for expressing and comparing quantities. Whether you're calculating a discount, measuring your golf handicap, or analyzing data from a scientific experiment, percentages are an essential part of the process. So next time you see a percentage sign, remember that it's not just a symbol – it's a gateway to a whole world of numerical comparisons and insights.

Step-by-step explanation:

The least cοmmοn denοminatοr οf the fractiοn is 24.

Part οf a whοle is a fractiοn. The quantity is written as a quοtient in mathematics, where the numeratοr and denοminatοr are divided. Each is an integer in a simple fractiοn. Whether it is in the numeratοr οr denοminatοr, a cοmplex fractiοn cοntains a fractiοn. The numeratοr and denοminatοr οf a cοrrect fractiοn are οppοsite each οther.

Here the given fractiοn is \($\frac{11}{8}\ \text{and}\ \frac{7}{12}\).

We knοw that Least cοmmοn denοminatiοn οf the fractiοn is lοwest cοmmοn multiple. Then, factοrs οf the denοminatοr

8 = 2*2*2

12=2*2*3

Nοw LCD = 2*2*2*3 = 24.

Hence the least cοmmοn denοminatοr οf the fractiοn is 24.4.

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Answer: 36

Step-by-step explanation: Multiplication

The probability that the mean of their test scores is greater than 78 is 0.0301.

Given,

Mean = 73

Standard Deviation σ = 7.8

Number of students randomly selected = 24

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

For an experiment having 'n' number of outcomes, the number of favorable outcomes can be denoted by x.

The formula to calculate the probability of an event is as follows.

Probability(Event) = Favorable Outcomes/Total Outcomes = x/n

The number of standard deviations from the mean is called the z - score and can be found by the formula

Z = (x - μ)/σ.

Z = (70 - 73)/(7.8/√24) = -1.88442228

P(z < -1.88) = 0.0301

Therefore, P(z < -1.88) = 0.0301

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The area of the largest outside circle in square centimeters is closest to e)1,017.36 cm².

The area of the largest circle is equal to the sum of the areas of the three inner circles and the area of the white region between them. Since the three inner circles are congruent, we can divide the white region into three equal parts. Let the radius of each inner circle be 'r'. Then, the radius of the largest circle is '3r'.

The area of the white region is the difference between the area of the square and the sum of the areas of the three congruent sectors. The area of each sector is (1/6)πr².

Therefore, the area of the white region is (9/4) r². Finally, we can use the formula for the area of a circle to find the area of the largest circle: A = π(3r)² + 3(1/6)πr² - (9/4) r² = (63/4)πr². If we substitute the value of r as 6 cm (since the diameter of the inner circle is 12 cm), we get the area of the largest circle as (63/4)π(6)² ≈ 1,017.36 cm²(e).

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The algebraic expression that describes how much Samantha earns after h hours if she makes $14.55 an hour is x = $14.55h, where x is the amount of money she earns and h is the number of hours she works.

An algebraic expression is the combination of numbers and variables in expressing and solving a particular mathematical question.

If Samantha makes $14.55 an hour, and h is the number of hours she works, then the algebraic expression to demonstrate how much she earns is:

x = $14.55h

where x = amount of money she earns

h = number of hours she works

Another real life situation:

A piggy bank contains $25, and $1.50 is added each day. The algebraic expression to demonstrate how much money the piggy bank contains is:

m = $25 + $1.50(d)

where m = amount the piggy bank contains after d days

d = number of days

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Launching the fuse is an illustration of a quadratic model, and the equation of the quadratic model is f(x) = 15(x - 3)(x - 8)

From the complete question, the zeros of the quadratic function are:

x = 3 and x = 8

Rewrite as:

x - 3 = 0 and x - 8 = 0

So, the quadratic equation is:

f(x) = a(x - 3)(x - 8)

Also from the graph, we have the following point

(x,y) = (4,60)

Substitute 4 for x and 60 for f(x) in the function

a(4 - 3)(4 - 8) = 60

Evaluate the difference

a(1)(-4) = 60

Evaluate the product

-4a = 60

Divide both sides by 4

a = -15

Substitute a = -15 in f(x) = a(x - 3)(x - 8)

f(x) = -15(x - 3)(x - 8)

Hence, the equation of the quadratic model is f(x) = 15(x - 3)(x - 8)

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9514 1404 393

Answer:

  105 minutes

Step-by-step explanation:

The volume of the terrarium is ...

  V = LWH

  V = (42 in)(10 in)(9 in) = 3780 in³

The volume of a box is ...

  V = (3 in)(3 in)(3 in) = 27 in³

Then the number of boxes it takes to fill the terrarium is ...

  (3780 in³)/(27 in³/box) = 140 boxes

The mermaid wants to fill it 3/4 full, so only needs 3/4 this number of boxes. That is 105 boxes. At the rate of 1 per minute, ...

  it will take 105 minutes to fill 3/4 of the terrarium

There are 2 ways that 3 students be seated in a row of 3 chairs with jack in the first chair

It is the ordered arrangement of members belonging to a set with no repeats.

To solve this problem the formula and the permutation procedure we must use is:

nPr = n! / (n-r)!

Where:

Information about the problem:

Applying the permutation formula we have:

nPr = n! / (n-r)!

3P3 = 2! / (2-2)!

3P3 = 2! / 0!

3P3 = 2*1 / 1

3P3 = 2

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Answer:

see explanation

Step-by-step explanation:

A

when 2 equal bases are being multiplied together their exponents are added together, that is

\(a^{m}\) × \(a^{n}\) = \(a^{(m+n)}\)

B

\(12^{5x}\) × \(12^{-7}\) = \(12^{5x-7}\)

C

\(x^{4}\)\(y^{6k+2}\) × x²\(y^{-1}\)

= \(x^{4}\) × x² × \(y^{6k+2}\) × \(y^{-1}\)

= \(x^{(4+2)}\) × \(y^{(6k+2-1)}\)

= \(x^{6}\)\(y^{6k+1}\)

#A

#B

#C

The given linear programming problem does not exhibit infeasibility, unboundedness or alternate optimal solutions.

Linear programming is an optimization technique to solve optimization problems. Linear programming is the process of optimizing a linear objective function of several variables subject to constraints on the variables. A linear programming model always has an objective function and constraints expressed as linear equations or inequalities.

Linear programming can be solved graphically or by using the simplex algorithm. The given linear programming problem isMin 1X + 1Ys.t. 5X + 3Y < 303X + 4Y > 36Y < 7X , Y > 0There are three constraints in the given linear programming problem, and each of them can be represented by a straight line in a two-dimensional graph. The feasible region is the shaded area where all the constraints are satisfied.

The objective function can be represented by a straight line as well.The feasible region in the given linear programming problem is not empty, which means there is at least one feasible solution. The feasible region is bounded, which means the optimal solution exists.

The objective function has a finite minimum value, which means the optimal solution is unique. Therefore, the given linear programming problem does not exhibit infeasibility, unboundedness or alternate optimal solutions.

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Answer:

Did this help??

Step-by-step explanation:

a.) 5x = m

5x = you and four friends.

m = money for food

b.) Plug in

5(5.25) = m

26.25 = m

The value of x is given as follows:

x = 62º.

We have two secants in this problem, and point C is the intersection of the two secants, hence the angle measure of x is half the difference between the angle measure of the largest arc by the angle measure of the smallest arc.

The arc angles are given as follows:

23º and 147º.

Hence we can obtain the measure of x as follows:

x = 0.5 x (147 - 23)

x = 62º.

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Answer:

Step-by-step explanation:

Step one:

let cherry be x

and lemon be y

the systems of the equation for the solution is given as

4x+y=30-----------1

8x+6y=100------2

Step two:

solve the equation simultaneously by substitution we have

4x+y=30

y=30-4x

put y=30-4x in equation 2

8x+6(30-4x)=100

8x+180-24x=100

8x-24x=100-180

-16x=-80

x=80/16

x=5

put x=4 in y=30-4x

y=30-4(5).

y=30-20

y=10

Given:

Tommy earned $14.80 in interest after 4 years on a principal of $100. His simple interest rate is 3.7%

Jane earned $140.40 in interest after 3 years on a principal of $1,200. Her simple 3 interest rate is 3.9%.

So, the simple interest rate of Jane's is greater than the simple interest rate of Tommy's because 3.9% > 3.7%

so, the bank that would be used is Jane's bank

Convergent in mathematics is a property of approaching a limit more and more explicitly as an argument (variable) of the function increases or decreases or as the number of terms of the series gets increased.

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Equation D , y =2.3x²-2.4x+3.5 gives the Quadratic curve-of-best-fit for the data in the table.

A Quadratic equation is an equation that can be represented as

y = ax²+bx+c

Here in the question the data points and the quadratic equations are given ,

We have to find the best fit

From the graph attached the best fit can be determined.

Equation D , y =2.3x²-2.4x+3.5 gives the Quadratic curve-of-best-fit for the data in the table.

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Answer: figure it out yourself, please right noe

Step-by-step explanation:

Step-by-step explanation:

I think the uestion might be wrong

Since the classroom is a square with a side length of 6 units, all sides are equal.

To find the perimeter, we add up the length of all four sides:

Perimeter = 6 + 6 + 6 + 6

Perimeter = 24

Therefore, the perimeter of the classroom is 24 units.

Answer:

√(209)

Step-by-step explanation:

Since <B is a right angle, AC is the hypotenuse and AB and BC are legs.

(AB)² + (BC)² = (AC)²

(4 mm)² + (BC)² = (15 mm)²

16 mm² + (BC)² = 225 mm²

(BC)² = 209 mm²

BC = √(209) mm

Answer:

x = 3/8

Step-by-step explanation:

\(x + \dfrac{1}{4}=\dfrac{5}{8}\\\\\dfrac{4x + 1}{4}=\dfrac{5}{8}\)

Cross multiply,

8*(4x +1) = 5*4

8*4x + 8*1 = 20

32x + 8 = 20

Subtract 8 from both sides

32x = 20 - 8

32x = 12

Divide both side by 32

x = 12/32

x = 3/8

Answer: a

Step-by-step explanation: I did the test

Answer:

The total cost is $6.25

Step-by-step explanation:

3/4 of 1 kilo of rect

4/5 of 1 kilo of square

3/5 of 1 kilo of flower

rect = 3 per kilo

square = 3 per kilo

flower = 3 per kilo

First rectangle beads:

3x = y where x is number of kilos and y is full cost

3(3/4) = y

9/4 = y = 2 1/4 = $2.25

Second square beads:

3x = y where x is number of kilos and y is full cost

3(4/5) = y

12/5 = y = 2 2/5 = $2.20

Third flower beads:

3(x) = y where x is number of kilos and y is full cost

3(3/5) = y

9/5 = y = 1 4/5 = $1.80

Add costs together

1.80 + 2.20 + 2.25 = 6.25

The total cost is $6.25