PLEASE HELP!

Set up the system of equations for this scenario. Let "b" represent hours babysitting
and "w" represent hours walking dogs.

Answer:

A = 101250 meter²

Step-by-step explanation:

Answer:

Maximum area enclosed will be 101250 meter².

Step-by-step explanation:

Let the length of the rectangular plot is x meters and the width is y meters.

900 meters is the length of the fence which represents the length of the three sides of the plot.

Therefore,

x + 2y = 900

y =  meters

Now the area of the rectangular plot will be

A = Length × Width

  = (x)(y)

  = 

  = 450x - 

We know for the maximum area we will differentiate the area and equalize it t the zero.



= 450 - x

For the maximum area, 

Therefore, 450 - x = 0

x = 450

and y = 

y = 

y = 450 - 225

  = 225 meters

Now the area enclosed A = 450 × 225

A = 101250 meter²

Linear equations - The team can bring its 24 players

What do you mean by linear equations with one variable?

A linear equation with one variable is one that can be written as ax+b = 0, where a and b are two integers, and x is a variable. This type of problem only has one solution. For instance, the linear equation 4x+4=8 only has one variable.

We are given that,

the total money raised by the lacrosse team is given to be $2863.50

bus rented at a cost of $1087.50

meal budget per person is calculated to be $74

let us assume the number of players the team can bring to the tournament to be "x".

bus rent + (meal budget * number of players) = total money raised

= 1087.50 + (74*x) = 2863.50

= 1087.50 + 74x = 2863.50

= 74x = 2863.50 - 1087.50

= 74x = 1776

= x = 1776 ÷ 74

= x = 24

Thus the team can bring its 24 players.

to learn more about linear equations visit:
https://brainly.com/question/2030026
#SPJ13

The value of the quadratic equation given as -9- -8x^2= -209 is 5

Quadratic equations are second-order polynomial equations and they have the form y = ax^2 + bx + c or y = a(x - h)^2 + k

The quadratic equation is given as

-9- -8x^2= -209

Add 9 to all sides of the equation

So, we have

-8x^2= -200

Divide both sides of the equation by -8

x^2= 25

Take the square roots

x = 5

Hence, the solution of the equation is 5

Read more about quadratic equations at

https://brainly.com/question/1214333

#SPJ1

We have the following:

We must apply the simple interest formula which is the following:

Where, P is the principal 3000

r is the interest rate 0.12

t is time in years

A is the total value

replacing:

The answer is $3360 at the end of the 1 year period

Jonas have to repay $13888 after 4 years.

Given

Principle amount of loan (P) = $12,400

Rate of interest (R) = 3%

Time period (T) = 4 years

Also the interest is not compounded, hence it is simple interest.

The formula for simple interest is (PTR)/100

Where,

P = Principle amount

T = time period

R = rate of interest

By substituting the values in the formula we get,

Simple interest =  (12400 x 4 x 3) / 100

Simple interest = 1488

Hence adding this interest to Principle sum we get

12400 + 1488 = 13888

Jonas has to repay $13888 after 4 years.

Learn more about Simple interest at

https://brainly.com/question/25845758?referrer=searchResults

#SPJ1

Answer:

y=3x+3

Step-by-step explanation:

i use point (-1,0) and (0,3) then 3-0/0-(-1)=3/1=3 so (0,3) 3 is the y intercept plug in so y=3x+3is the equation

Answer:

See below

Step-by-step explanation:

Find two convenient points to calculate the slope:

0,3   and   -1,0         slope =  m =  (3-0) / ( 0 - -1) = 3

  and the y axis intercept = 3   (from looking at graph)

line equation is   y = mx + b             ( where b is the y-axis intercept)

                     y = 3x + 3

The linear function to model the amount of money in her checking account at any time t is 185 + 5.55t.

An interest simply means the extra amount that's borrowed when one borrows money or when one saves.

In this case, the checking account pays simple interest at 3% per year. She has $185 in her account.

The amount of money in the account at anytime will be:

= 185 + (PRT/100)

P = principal

R = rate

T = time

= 185 + [(185 × 3 × t)/100]

= 185 + 5.55t

The function is 185 + 5.55t.

Learn more about interest on:

brainly.com/question/25793394

#SPJ1

Answer:

In second week there is percentage limit (-ve sign) of 20% in people traveling examine to first week.

In 0.33 week there is proportion increase of 50% in human beings traveling compare to 2nd week.

In fourth week there is share limit of 75% in humans visiting evaluate to 1/3 week.

Answer:744

Step-by-step explanation:

800-7%=744

Answer:

$56

Step-by-step explanation:

Step-by-step explanation:

[tex]area \: of \: circle = \pi\:r^{2} \\ \pi \times6.5^{2} - \pi \times {2.3}^{2} = 36.96\pi = 116.113... {cm}^{2} [/tex]

Answer:

116.129 cm²

Step-by-step explanation:

       [tex]\boxed{\bf Area \ of \ circle = \pi r^2}[/tex]

Area of outer circle:

    R = 6.5 cm

   Area =3.142 * 6.5 * 6.5

             = 132.75 cm²

Area of inner circle:

 r = 2.3 cm

       Area of inner circle =3.142 * 2.3 *2.3

                                        = 16.621 cm²

Area of shaded area = area of outer circle - area of inner circle

                                    = 132.75 - 16.621

                                    =  116.129 cm²

Answer:

Step-by-step explanation:

You want the ratios (red to blue), of perimeter and area, given that corresponding sides have the ratio red to blue = 5 to 8.

The ratio of perimeters is the ratio of corresponding side lengths:

  red to blue = 5 / 8

The ratio of areas is the square of the ratio of corresponding side lengths:

  red to blue = (5 to 8)² = 25 / 64

__

Additional comment

Ratios are customarily expressed in any of three equivalent forms:

The value of b for which the difference between the fractions

 (2b - 1) / 2 and  (1 + 5b) / 4 negative will be;

⇒ b < -3

What is Fraction?

A fraction is a part of whole number, and a way to split up a number into equal parts.

Given that;

Two fractions are,

⇒ (2b - 1) / 2 and  (1 + 5b) / 4

Since, The difference between the fractions  (2b - 1) / 2 and  (1 + 5b) / 4 negative.

So, we can formulate;

⇒ (1 + 5b) / 4 - (2b - 1) / 2 < 0

Solve for b, as;

⇒ 1 + 5b - 2 (2b - 1) < 0 x 4

⇒ 1 + 5b - 4b + 2 < 0

⇒ b + 3 < 0

Subtract 3 both side;

⇒ b + 3 - 3 < 0 - 3

⇒ b < -3

Therefore, The value of b for which the difference between the fractions  (2b - 1) / 2 and  (1 + 5b) / 4 negative will be;

⇒ b < -3

Learn more about the fraction visit:

https://brainly.com/question/20712359

#SPJ1

The area in square inches of the tile is 9 / 4 t .

She makes rectangular kitchen tiles with an area of t square inches.

Therefore,

area of the rectangular kitchen tiles = lw

t = lw

l = t / w

w = t / l

Therefore, the tile is 3 / 4 as long and 3 times wide as her kitchen tiles.

Hence,

area of the tile = 3 / 4 t / w × 3(t / l)

area of the tile = 9 / 4 × t² / lw

where

lw = t

Hence,

area of the tile  = 9 / 4 × t² / t

area of the tile  = 9 / 4 × t

Therefore,

area of the tile  = 9 / 4 t

learn more on rectangle and area here: https://brainly.com/question/27919973

#SPJ1

Given the formula for the circumference of a circle:

C = 2πr

Let's find the circumference of a circle with a diameter of 4 ft.

Where r is the radius.

To find the radius, we have:

The radius of the circle is 2 ft.

Take π = 3.14

Hence, to find the circumference of the circle, C, substitute 2 for r, 3.14 for π, and evaluate.

Thus, we have:

Therefore, the circumference of the circle is 12.56 ft

ANSWER:

C. 12.56 ft

If Mr. Giordano's drove 4.5 miles in 5 minutes and Mr. Baras drove 6.3 miles in 8 minutes, then the Mr. Giordano drove fast because speed of Mr. Giordano is greater than Mr. Baras

The distance traveled by Mr. Giordano = 4.5 miles

The time taken = 5 minutes

Speed = Distance / Time

Substitute the values in the equation

Speed = 4.5/5

= 0.9 miles per minutes

The distance traveled by Mr. Baras = 6.3 miles

The time taken = 8 minutes
Speed = Distance / Time

Substitute the values in the equation

Speed = 6.3/8

= 0.78 miles per minutes

Hence, if Mr. Giordano's drove 4.5 miles in 5 minutes and Mr. Baras drove 6.3 miles in 8 minutes, then the Mr. Giordano drove fast because speed of Mr. Giordano is greater than Mr. Baras

Learn more about speed here

brainly.com/question/7359669

#SPJ1

The simplified form of 3^6 . 3^5 to a single power of 3 is 3^11.

Given,

The exponents; 3^6 and 3^5.

We have to simplify this into a single power of 3.

In multiplication;

That is,

aᵇ . aⁿ = a^(b + n)

a^b . c^d = a x c ^ (b + d) = ac^bd

So,

3⁶ . 3⁵ = 3^(6 + 5) = 3¹¹

That is,

The simplified form of 3^6 . 3^5 to a single power of 3 is 3^11.

Learn more about simplification of exponents here:

https://brainly.com/question/28339931

#SPJ1

Answer: 3 hours

Let john take x hours to finish the work

Let nelly take y hours to finish the work

given, y =x+3

Portion of work done by john alone in one hour = 1/x

Portion of work done by Nelly alone in one hour = 1/y

∴Portion of work done by both john and nelly in one hour = 1/x + 1/y

[tex]= \frac{1}{x} + \frac{1}{x+3}\\=\frac{x+3+x}{x*(x+3)}\\=\frac{2x+3}{x^2+3x}[/tex]

Total time taken by John and nelly to finish the work = 2 hours

[tex]\therefore [2(2x+3)]/[x^2 + 3x] = 1\\= > 4x + 6 = x^2 + 3x\\= > x^2 -x -6 =0\\= > x^2 - 3x + 2x -6 =0\\= > x(x-3) + 2(x-3)=0\\= > (x+2)(x-3)=0[/tex]

Hence either x = -2 or x = 3

Since x is time taken, it cannot be negative, hence x = 3

∴Time taken by john to finish the work = 3 hours

Read a similar work-time answer:

https://brainly.com/question/17146782

For 6 hours

Grace will pay = $11 + 6 x $4

= $11 + $24

= $35

for t hours

Grace will pay = $11 + t x $4

= $11 + $4t

= $( 11 + 4t )

The width of the house driveway in the scale drawing is 4 inches.

Scale drawing is drawing that shows a real object with accurate sizes reduced or enlarged by a certain amount (called the scale).

Therefore, he measured a house and its lot and made a scale drawing.

The scale of the drawing was 1 inch : 5 feet.

The houses driveway is 20 feet wide in real life.

Therefore,

5 feet = 1 inch

20 feet = ?

cross multiply

Therefore,

width of the driveway on the scale drawing =  20 × 1 / 5

width of the driveway on the scale drawing =  20 / 5

width of the driveway on the scale drawing =  4 inches.

learn more on scale drawing here: https://brainly.com/question/28729500

#SPJ1

Answer:

65

Step-by-step explanation:

2:26

1:x

26/2 = x = 13

The heli uses 13 gallons per hour.

5:y

13x5 = y = 65

Hope that helps

P(A). P(Y)= 0.5*0.6=0.3

Probability: - Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1.

Number of cases of A, N(A)= 250,

So,

     P(A)=250/500 =0.5

and

      N(Y)= 300, so P(Y)=300/500 =0.6

N(A and Y)= 175 so P(A and Y)= 175/500=0.35

A and Y are mutually exclusive implies A and Y donot have any elements in common, but here there are 175 people who are below 30 years and under the influence of alcohol, So they are not mutually exclusive!!

For A and Y to be independent, the Probability of A intersection Y should be equal to the product of their respective probabilities,

in this case P(A). P(Y)= 0.5*0.6=0.3 which is not equal to P( A intersection Y) (0.35)

So, A and Y are not mutually Independent also.

Learn more about Probability from the link

https://brainly.com/question/24756209

#SPJ4

Slope of the line graph here is undefined.

When a line is vertical, its slope is ambiguous. A vertical line lacks the horizontal distance required for a positive, negative, or zero slop to exist. Since there is no horizontal change, there is no slope for vertical lines because 0 cannot be divided into any integer.

It is obvious that the x-coordinates are the same if we have a pair of coordinates, (x1, y1) and (x1, y2) through which a line passes. They are the same vertical line's points. As a result, the slope of such a line will be ambiguous.

Examples of undefined slope in real-world situations include elevators that only go up and down, and a mountain cliff that is vertical for a certain amount of height but impossible for climbers to scale.

To know more about undefined slope refer to the given link:

https://brainly.com/question/10633357?referrer=searchResults

#SPJ1

Given

The table,

The sample size is 27.

To find:

The mean weight of these 27 babies.

Explanation:

It is given that,

That implies,

The mean weight of 27 babies is,

Hence, the mean weight of 27 babies is 6.1 pounds.

Explanation

Given the function;

We are asked to find the population of the bacteria after 7 days.

Given that t represents the number of days, we can find the population by substituting 7 into the formula. This can be seen below.

Answer: 4374

Percentage of the cupcakes that had sprinkles = 30 %

Percentage

Percentage, often referred to as percent, is a fraction of 100. Percentage means "per 100," and denotes part a total amount. For example, 45% represents 45 out of 100.

Proportion

The proportion formula is used to depict if two ratios or fractions are equal. We can find the missing value by dividing the given values. 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 first step is to divide 12 by 40 to get the answer in decimal form:

12 / 40 = 0.3000

Then, we multiplied the answer from the first step by one hundred to get the answer as a percentage:

0.3000 * 100 = 30.00%

Percentage of the cupcakes that had sprinkles = 30 %

To learn more about Percentage visit:

brainly.com/question/28269290

#SPJ4

Answer: E. 2.24

Step-by-step explanation:

6720 - 6720 x 2/3

6720 - 4480

= 2,240

1 kilo = 1000 meters

2240 ÷ 1000

= 2.24