25. Write a linear equation for each of the following scenarios. Then, solve for the variable
you created.
a. Kayla has a certain amount of money. If she spends $12.00, then she has of the
original amount left. What was the original amount of money Kayla has?
Equation:
Answer:

Answer:

y = 3/2x + 3

Step-by-step explanation:

The slope-intercept form is y = mx + b

2y − 3x = 6

2y = 3x + 6

y = 3/2x + 3

So, the answer is y = 3/2x + 3

An arithmetic sequence is a sequence of integers with its adjacent terms differing with one common difference.

We know that,

An arithmetic sequence is a sequence of integers with its adjacent terms differing with one common difference.

The explicit formula for any arithmetic series is given by the formula,

a_n = a_1 + (n-1)d

where d is the difference and a₁ is the first term of the sequence.

The major distinction between recursive and explicit formulas is that a recursive formula returns the value of a particular term depending on the preceding term, whereas an explicit formula returns the value of a given term based on its location.

When the value of the first term and the common difference is known then an explicit formula is used, while the recursive formula will be used when the value of the previous value is known and the value of the common difference is known.

Learn more about Arithmetic Sequence:

brainly.com/question/3702506

#SPJ1

complete question:

what is the difference between the explicit formula and recursive formula for sequences when would you use one over the other​

The elevations of four locations.

Hence, the correct option is C.

Based on the elevation

Therefore, New Orleans has a lower elevation than Death Valley.

Hence, the correct option is C.

To know more about elevations here

https://brainly.com/question/28937648

#SPJ1

Answer: 20


Realistically : In this hypothetical scenario, if 5 + 5 equals 9, then the basic principles of mathematics are no longer applicable, and any further calculations cannot be accurately determined. However, in the real world, 5 + 5 equals 10, and therefore 10 + 10 would equal 20.

Answer:

20

Step-by-step explanation:

The value of the given summation is:

[tex]\sum (29a_i - 13b_i) ]= -30[/tex]

Here we know that the sums are:

[tex]\sum a_i = -10\\\\\sum b_i = -20[/tex]

And we want to find the value of the sum:

[tex]\sum (29a_i - 13b_i)[/tex]

First we can distribute the sum to get:

[tex]\sum 29a_i + \sum - 13b_i[/tex]

And take the coefficients out of the sum:

[tex]29\sum a_i -13\sum b_i[/tex]

Now replace the known values:

[tex]29\sum a_i -13\sum b_i = 29*-10 - 13*-20 = -290 + 260 = -30[/tex]

Learn more about sums at:

https://brainly.com/question/30518693

#SPJ1

Answer:

x=3/2

x=-2

Step-by-step explanation:

The required maximum value of C is 16, and it occurs when x = 3 and y = 2.

To find the maximum value of C = 4x + 2y subject to the restraints x > 2, x < 5, y > 1, and y < 6, we can use the method of Lagrange multipliers.

First, we set up the Lagrangian function L as follows:

L = 4x + 2y - λ₁(x - 2) - λ₂(x - 5) - λ₃(y - 1) - λ₄(y - 6)

where λ1, λ2, λ3, and λ4 are Lagrange multipliers.

Next, we take the partial derivatives of L with respect to x, y, λ1, λ2, λ3, and λ4, and set them equal to zero:

∂L/∂x = 4 - λ₁ - λ₂ = 0

∂L/∂y = 2 - λ₃ - λ = 0

∂L/∂λ₁ = x - 2 = 0

∂L/∂λ₁ = 5 - x = 0

∂L/∂λ₃ = y - 1 = 0

∂L/∂λ₄ = 6 - y = 0

Solving these equations simultaneously, we get:

λ₁ = 1, λ₂ = 3, λ₃ = 1, λ₄ = 1, x = 3, y = 2

Therefore, the maximum value of C is:

C = 4x + 2y = 4(3) + 2(2) = 16

So, the maximum value of C is 16, and it occurs when x = 3 and y = 2.

Learn more about Lagrange multipliers here:

https://brainly.com/question/30776684

#SPJ1

The area of the original figure is 1/9 times the area of the new figure

The perimeter of the original figure is 1/2 times the perimeter of the new figure

From the question, we have the following parameters that can be used in our computation:

The figures

The areas of the new figures is calculated as

Area = Old area * scale factor

So, we have

Area Figure 1 = (1 * 3) * 3

Area Figure 1 = 9

The perimeter of the new figures is calculated as

Perimeter = Old Perimeter * scale factor

So, we have

Perimeter Figure 2 = (4 * 4 + 4 * (2 + 3)) * 1/2

Perimeter Figure 2 = 18

See attachment for the dilates figures

Read more about scale factor at

https://brainly.com/question/17031580

#SPJ1

Answer:

1. y = 3/2 x - 8

2. 2y-x = -4

3. y = -3/4x-2

4. -5x + 3y = -12

According to the information, the interest earned on the annuity over the 20-year period is $78,066.89.

To find the value of the annuity, we can use the formula:

where:

In this case, PMT = $7,000, r = 6.5% per year compounded annually, and n = 20 years.

First, we need to convert the annual interest rate to a periodic interest rate. Since the interest is compounded annually, the periodic interest rate is the annual rate divided by the number of periods in a year:

i = r / m

where,
m = number of compounding periods per year.

In this case, since the interest is compounded annually, m = 1, so:

i = 6.5% / 1 = 0.065

Now we can plug in the values and solve for V:

V = $7,000 x [(1 + 0.065)^20 - 1] / 0.065

V = $218,066.89

Therefore, the value of the annuity is: $218,066.89.

To find the interest earned on the annuity over the 20-year period, we can subtract the total amount deposited from the total value of the annuity:

Learn more about interest in: https://brainly.com/question/30393144

#SPJ1

In the above triangle,

1) the sum of side 1 and 2 is: 4x² + 3x + 4
2) the length of side 3 is: 5x³-6x²-12

1) To find the sum of side 1 and side 2, we simply need to add them together.

Side 1 = 3x² - x - 1

Side 2 = x² + 4x +  5

Side  1 + Side 2 = (3x²  - x - 1) + (x²  + 4x +  5)

= 3x² + x² - x + 4x - 1 + 5

= 4x² + 3x + 4

Therefore, the sum of side 1 and side 2 is = 4x² + 3x + 4

2)  We can derive the expression of the thried side by removing the expression in  (1) above form the perimeter.

That is;

(5x³-2x² + 3x - 8) - (4x² + 3x + 4)

First we distribute the negative sign

= 5x³-2x² + 3x - 8 + -1 (4x² + 3x + 4)

= 5x³-2x² + 3x - 8 + -1 (4x²) -1( 3x) -1( 4)

= 5x³-2x² + 3x - 8 + -4x² - 3x - 4

Combining like terms we have

= (5x³) (-2x²+-4x²) + (3x +- 3x) + (-8 +   - 4)

= 5x³-6x²-12

Hence the missing side (thrid side is) 5x³-6x²-12

Learn more about triangles:
https://brainly.com/question/2773823
#SPJ1

The two compositions give:

Here we have two functions:

f(x) = 3x + 5

g(x) = -7x + 6

And we want to fin the two compositions:

f(g(2))

g(f(2))

First, let's find g(2) = -7*2+  6 = -14 + 8 = -8

Then:

f(g(2)) = f(-8) =  3*-8 + 5 = -19

Now the other one:

f(2) = 3*2 + 5 = 11

Evaluating g in that:

g(11) = -7*11 + 6 = -77 + 6 = -71

Learn more about compositions at:

https://brainly.com/question/10687170

#SPJ1

Breanna and Qasim must contribute $22,583.39 per year for eight years to have enough money to pay for their daughter's university education.

To determine the yearly contribution required for Breanna and Qasim, we need to use the present value formula for an annuity.

The formula is:

PV = C * ((1 - (1 + r)⁻ⁿ) / r)

Where PV is the present value of the annuity, C is the annual contribution, r is the annual interest rate, and n is the number of years.

First, we need to calculate the present value of the contributions that Breanna and Qasim make for the first eight years. We can use the formula:

PV = C * ((1 - (1 + r)⁻ⁿ) / r)

Where C is the annual contribution, r is the annual interest rate, n is the number of years, and PV is the present value of the contributions.

We know that the annual contribution is the same for each of the eight years, so we can simplify the formula to:

PV = C * (((1 - (1 + r)⁻ⁿ) / r))

The present value of the contributions is equal to the future value of the withdrawals five years after the last contribution. We can use the future value formula for an annuity to calculate this:

FV = R * ((1 + r)ⁿ - 1) / r

Where FV is the future value, R is the annual withdrawal, r is the annual interest rate, and n is the number of years.

We know that the future value of the withdrawals is $51,100 per year, the interest rate is 4%, and the number of years is 5.

FV = 51,100 * ((1 + 0.04)⁵ - 1) / 0.04 = $246,387.19

This is the present value of the contributions that Breanna and Qasim make over the first eight years. We can now solve for the annual contribution required using the present value formula:

PV = C * (((1 - (1 + r)⁻ⁿ) / r))

$246,387.19 = C * (((1 - (1 + 0.04)⁻⁸) / 0.04))

C = $22,583.39

To learn more about interest click on,

https://brainly.com/question/31467028

#SPJ1

The length of Tim's deck is 1/15th of the length of Al's deck.

Finding the expressions for the length of each deck.

For Al's deck:

Area of a rectangle = length × width

60x + 40 = length × 4

length = (60x + 40) / 4

length = 15x + 10 ft

For Tim's deck:

Area of a rectangle = length × width

21x + 14 = length × 7

length = (21x + 14) / 7

length = 3x + 2 ft

Now we can find no. of times the length of Tim's deck is Al's deck by dividing the length of Al's deck by the length of Tim's deck:

(15x + 10) / (3x + 2)

Simplifying this expression:

(3(5x + 3) + 1) / (3x + 2)

(3(5x + 3) / (3x + 2)) + (1 / (3x + 2))

15 + (1 / (3x + 2))

Therefore, the length of Tim's deck is 1/15th of the length of Al's deck.

Learn more about the algebraic expression here :

brainly.com/question/21751419

#SPJ1

The number of times on the hour in 3 days at least two owls will not hoot obtained using number theory are 69 times.

Number theory is the study of integers and functions of arithmetic.

The number of hours in 3 days = 72 hours

Number theory indicates that the multiples of the periods of hooting are;

The multiples of 8 are; 8, 16, 24, 32, 40, 48, 56, 64, 72

The multiples of 3 are; 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72

The multiples of 12 are; 12, 24, 36, 48, 60, 72

The common multiples of 3 and 8 are 24, 48, 72

The common multiples of 8 and 12 are 24, 48, 72

The number of times in 72 hours when at least 2 owls are hooting are therefore;

The times when only one owl is hooting are

8, 16, 32, 40, 56, 64, = 6 times only the second owl is hooting

3, 6, 9, 12, 15, 18, 21, 27, 30, 33, 36, 39, 42, 45, 51, 54, 57, 60, 63, 66, 69   = 21 times when only the first owl hoots

The times when non of the owls hoot  are;

72 - 24 - 6 = 42 times

Learn more on number theory here: https://brainly.com/question/4301692

#SPJ1

The summation ∑₁¹²⁴(29a₁ - 13b₁)  = -30

Suppose that ∑₁¹²⁴a₁ = -10 and  ∑₁¹²⁴b₁ = -20. We desire to compute the following ∑₁¹²⁴(29a₁ - 13b₁), we proceed as follows.

So, the summation ∑₁¹²⁴(29a₁ - 13b₁)

Expanding the brackets, we have that

∑₁¹²⁴(29a₁ - 13b₁) = ∑₁¹²⁴29a₁ -  ∑₁¹²⁴13b₁)

= 29∑₁¹²⁴a₁ -  13∑₁¹²⁴b₁

Given that ∑₁¹²⁴a₁ = -10 and  ∑₁¹²⁴b₁ = -20.

So, substituting the values of the variables into the equation, we have that

∑₁¹²⁴(29a₁ - 13b₁) = 29∑₁¹²⁴a₁ -  13∑₁¹²⁴b₁

= 29(-10) - 13(-20)

= -290 + 260

= -30

So, ∑₁¹²⁴(29a₁ - 13b₁)  = -30

Learn more about summation here:

https://brainly.com/question/30518693

#SPJ1

The perimeter of the shape is 13π

The area of the shape is 48.125π square units

The perimeter of the shape is calculated as follows:

The perimeter of a semicircle = πr

The perimeter of shape = 2 * π * 2 + 2 * π * 4.5

The perimeter of shape = 13π

The area of the shape = area of the two semicircles of radius 2 + area of the two semicircles of radius 4.5 + area of the rectangle

Area of semicircle = πr²/2

The area of the shape = π * 2²/2 + π(4.5)²/2 + 4 * 9

The area of the shape = 48.125π square units

Learn more about area of semicircles at: https://brainly.com/question/15822332

#SPJ1

m∡RST angle is 146 degrees and m∡RUT is 157 degrees are the arc measures.

Let us find angle RVT

The sum of four angles should be 360 degrees

∠RVS +∠SVU+∠UVT+∠RVT=360

64+139+75+x= 360

278+x=360

x=360-278

x=82 degrees

Arc measure m∡RST =64+82

m∡RST = 146 degrees

m∡RUT = 82+75

m∡RUT = 157 degrees

Hence, m∡RST is 146 degrees and m∡RUT is 157 degrees are the arc measures.

To learn more on Circles click:

https://brainly.com/question/11833983

#SPJ1

Answer:

$3

Step-by-step explanation:

since $12 is 4/4 and he save 1/4 its 12÷4

Answer:

$3

Step-by-step explanation:

12 divided by 4 is 3

(3+3)+(3+3)

6+6

= 12

Answer:

  $2080

Step-by-step explanation:

You want to know the annual cost of coffee purchased 5 mornings and 3 afternoons per week when each purchase amounts to $5.

Five morning visits and three afternoon visits to the coffee shop will be a total of 8 visits per week. At $5 each, the cost per week is ...

  8 × $5 = $40

The cost for a year will be the cost for 52 weeks:

  52 × $40 = $2080

Carla spends $2080 per year on coffee.

Whether this is a "little indulgence" or not will depend on Carla's budget.

Answer:

To calculate the monthly deposit required, we can use the formula for future value of an annuity, which is:

FV = Pmt x (((1 + r)^n - 1) / r)

where FV is the future value, Pmt is the monthly payment, r is the monthly interest rate, and n is the number of months.

In this case, we want to find the monthly payment required to achieve a future value of $12,000 in 6 years, or 72 months. The monthly interest rate is the annual percentage rate (APR) divided by 12, so:

r = 6.5% / 12 = 0.00541666667

Substituting these values into the formula, we get:

12,000 = Pmt x (((1 + 0.00541666667)^72 - 1) / 0.00541666667)

Solving for Pmt, we get:

Pmt = 12,000 / (((1 + 0.00541666667)^72 - 1) / 0.00541666667)

≈ $164.41

Therefore, you should deposit $164.41 each month to end up with $12,000 in 6 years

Answer:

width = 9 in

Step-by-step explanation:

Area = A = length x width = w x l

w = A/l = 54 in²/6 in = 9 in

Answer:

Median: 31

Mode: 31

Range: 67

Step-by-step explanation:

Median: To find the median, we first need to arrange the numbers in order from smallest to largest:

25, 29, 31, 31, 69, 80, 92

The middle number is 31, so the median is 31.

Mode: The mode is the number that appears most frequently in the set. In this case, the number 31 appears twice, which is more than any other number. So, the mode is 31.

Range: The range is the difference between the largest and smallest numbers in the set. The smallest number is 25 and the largest number is 92, so the range is:

92 - 25 = 67.

Therefore, the median is 31, the mode is 31, and the range is 67.

Answer:

The median of the given set of numbers is 31, the mode is 31, and the range is 67.

Step-by-step explanation:

To find the median, we need to first arrange the numbers in order from smallest to largest:

25, 29, 31, 31, 69, 80, 92

There are seven numbers in the list, which means the middle number will be the fourth number: 31.
Therefore, the median is 31.

To find the mode, we need to determine which number appears most frequently in the list.
In this case, the number 31 appears twice, which is more than any other number in the list.

Therefore, the mode is 31.

To find the range, we need to subtract the smallest number from the largest number. The smallest number is 25 and the largest number is 92, so the range is:

92 - 25 = 67

Therefore, the range is 67.

The product of the matrices is [24].

Given is a row matrix and a column matrix, we need to find the product of both,

So,

A = [-3, 3, 0]

B = [tex]\left[\begin{array}{ccc}-3\\5\\-2\end{array}\right][/tex]

Now, the product will be =

AB = [-3, 3, 0] ×  [tex]\left[\begin{array}{ccc}-3\\5\\-2\end{array}\right][/tex]

AB = [9 + 15 + 0]

AB = [24]

Hence the product of the matrices is [24].

Learn more about matrices click;

https://brainly.com/question/11367104

#SPJ1

The single formulas for f and g so that both compositions hold true are f(x) = 3sin(x) and g(x) = π/4(x − 1)

From the question, we have the following parameters that can be used in our computation:

f(g(x)) = 3sin (pi/4(x − 1))

g(f(x)) = pi/4(3 sin(x) − 1)

Express pi as π

So, we have

f(g(x)) = 3sin (π/4(x − 1))

g(f(x)) = π/4(3 sin(x) − 1)

In f(g(x)) = 3sin (π/4(x − 1)), replace the expression in bracket with g(x)

So, we have

f(g(x)) = 3sin (g(x))

This means that

f(x) = 3sin(x) and also, it means

g(x) = π/4(x − 1)

Hence, the single formulas that both compositions hold true are f(x) = 3sin(x) and g(x) = π/4(x − 1)

Read more about composite functions at

https://brainly.com/question/10687170

#SPJ1

Answer:

F1 8,-2 F2 -5,-3

Step-by-step explanation:

Answer:106

Step-by-step explanation:

The correct answer is,

C. 60(x - 3) = 45x.

This equation is based on the information that the 45 expensive wood costs $3.00 more than the 60 cheap wood. In other words, if the price of the 60 cheap wood is x, the price of the 45 expensive wood is x + 3.

Since,  Algebra involves working with numbers, equations, and variables to solve real-world problems and understand abstract relationships.

Now, To solve this equation, we must use algebra and solve for x.

First, we multiply both sides of the equation by 4/5. This gives us:

48x + 36 = 45x

-36 = 3x

Finally, we divide left side of the equation by 3, giving us the final solution:

x = -12

Therefore, the price of the 60 cheap wood is $12, and the price of the 45 expensive wood is $15.

that is, 60 (x - 3) = 45x

This equation shows the correct relationship between the two types of wood that the contractor purchased.

For more questions related to price

brainly.com/question/29023044

#SPJ1