PLEASE HELP ASAP ILL MARK BRAINLEST

Answer:

4x-5y=-100

Step-by-step explanation:

Answer:

y = 100

Step-by-step explanation:

Standard Form 1/5y-20=0

Answer:

9:3/4

Step-by-step explanation:

Answer: the answer is 12

Step-by-step explanation:

you need to croos at your denmator add  your knew one then when you multiply you divide the two numbers.

Answer:

70/10=7

Step-by-step explanation:

Answer:

Step-by-step explanation:

75+50= 125

125*60%= 75 to his mother.

Answer:

Steve gave $75 to his mother.

Thus, Steve gave $75 to his mother.

Answer:

26

Step-by-step explanation:

104 miles

4 hours

so do   104/4, then you get 26

so 26 miles per an hour

Speed of the car is 26 miles per hour.

Speed can be measured as the distance traveled by a body in a given period of time. The SI unit of speed is m/s.

Speed formula can be used to find the speed of objects. The formula for the speed of a given body can be expressed as,

Speed = Distance ÷ Time

Given,

Car travels distance = 104 miles

Time taken to travel 104 miles = 4 hours

Speed = distance/ time

Speed of car

= 104/4

= 26 miles per hour

Hence, 26 miles per hour is the speed of car.

Learn more about speed here:

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Answer: AC= 85 BC= 68 and AB=65 The sides of the triangle are all of different lengths which means that ABC is a scalene triangle.

Step-by-step explanation: A scalene triangle only has different lengths! :)

Answer:

75 ÷ 5 - [(9-7) x3] x 2= −2[tex]x^{5}[/tex]+15

Step-by-step explanation:

Answer:(3x-2y)(3x+2y)

Step-by-step explanation:

IT is this one

Answer:[tex]-18x^{2} +8yx+3x+2y[/tex]

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

C; multiply 4 to both sides

Step-by-step explanation:

When you want to solve for a variable, you always want to isolate it.

So, to move 4, we have divide:

[tex]\frac{A}{4}[/tex] = [tex]\frac{4r}{4}[/tex].

The 4 in 4r is "one'd" out, and now we have 1r, or simply r.

Now, we have r = A/4

Answer:

Debra drank more

Step-by-step explanation:

1pint = .4 liters

Answer:

1 apple

Step-by-step explanation:

9 apples - 8 apples, so there is one apple left, but it is not John's apple, and he goes to the store to buy one so now he has one. :)

Answer:

40

Step-by-step explanation:

the triangle with the missing lenght is being multiplied by 8. 5 times 8 is 40. have a good day

Answer:

0.5 m

Step-by-step explanation:

Given that the dimensions of the garden are 15 meters by 20 meters.

The area of the new garden (original garden + stone placed around the perimeter) is 336m².

Let d be the width of the border having stepping stones as shown in the figure. The shaded region in the figure is the area having stepping stones.

The area including the shaded region [tex]= (15+2d)(20+2d) m^2[/tex]

[tex]\Rightarrow 336 = (15+2d)(20+2d) \\\\\Rightarrow 336 = 300+ 70 d +4d^2 \\\\\Rightarrow 4d^2 +70d+300-336=0 \\\\\Rightarrow 4d^2 +70d-36=0 \\\\\Rightarrow 2d^2 +35d-18=0 \\\\\Rightarrow 2d^2 +36d-d-18=0 \\\\\Rightarrow (2d-1)(d+18)=0 \\\\\Rightarrow (2d-1)=0, \; or \; (d+18) \\\\\Rightarrow d= 0.5\;or -18 \\\\[/tex]

As the width of the stone border can't be a negative value, so taking the positive value.

Hence, the width of the stone border is 0.5 m.

So, the wi

Answer:y=-2x+11 hope this helps

Step-by-step explanation:

Answer:

y=-2x+11

Step-by-step explanation:

Answer: $9.20

Step-by-step explanation:10 x 1.08 = 10.80. 20 - 10.80 is 9.20.

Answer:

y = -x + 2

Step-by-step explanation:

The equation of line is often written in the form;

     y = mx + c

y and x are the coordinates

m is the slope

c is the intercept

 From the given parameters;

        c  = 2

     (1,1) are the coordinates

Let us find the slope of the line;

      1  = m(1) + 2

       1  = m + 2

          m = 1- 2  = -1

The equation of the line is;

         y  = -1x + 2

         y = -x + 2

Answer:

3.5 + (22.75 x 2) + 58

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

2(4)+4(3) =20

8+12=20 yes

--------------------------

2(4)+2(3)=14

8+6=14 yes

Answer:

2 burgers and 4 drinks= $20 while 2 burgers and 2 drinks=$14

if the burger cost was $2 and the drink cost was $4, Emily would've spent $20 while Deja would've spent $12, so B's wrong

if the burger cost was $5 and the drink cost was $3, Emily would've spent $22, so C's incorrect, too

if the burger cost was $3 and the drink cost was $2, Emily would've spent $14 and Deja would've spent $10 so D's false as well

Therefore A's correct

Step-by-step explanation:

the burger cost is $4 and the drink cost is $3, Emily  spent $20 and Deja  spent $14

t=total, bc= burger cost, dc=drink cost

Emily's Equation:

t= 2(bc)+4(dc)

t=2(4)+4(3)

t=8+12

t=20

20=20

Deja's Equation

t=2(bc)+2(dc)

t=2(4)+2(3)

t=8+6

t=14

14=14

Answer:

B and D

Step-by-step explanation:

0.6D & d + 0.6d

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

Answer:

a. The company's profit function P(x, y, z) = 24x +12y +16z – 0.2x^2 – 0.1y^2 – 0.1z^2 – 26

b. The number of cars that must be sold in each market are 60 in America, also 60 in Europe and 80 in Asia.

Step-by-step explanation:

Note: This question is not complete and it has some errors in the figures used. The correct complete question is therefore provided before answering the question as follows:

An automobile manufacturer sells cars in America, Europe, and Asia, charging a different price in each of the three markets. The price function for cars sold in America is p = 27 − 0.2x  (for 0 ≤ x ≤ 135), the price function for cars sold in Europe is q = 15 − 0.1y  (for 0 ≤ y ≤ 150), and the price function for cars sold in Asia is r = 19 − 0.1z (for 0 ≤ z ≤ 190), all in thousands of dollars, where x, y, and z are the numbers of cars sold in America, Europe, and Asia, respectively. The company's cost function is C = 26 + 3(x + y + z) thousand dollars.

(a) Find the company's profit function P(x, y, z). [Hint: The profit will be revenue from America plus revenue from Europe plus revenue from Asia minus costs, where each revenue is price times quantity.]

P(x, y, z) =

(b) Find how many cars should be sold in each market to maximize profit. [Hint: Set the three partials Px, Py, and Pz equal to zero and solve. Assuming that the maximum exists, it must occur at this point.]

The explanation to the answers is now given as follows:

(a) Find the company's profit function P(x, y, z). [Hint: The profit will be revenue from America plus revenue from Europe plus revenue from Asia minus costs, where each revenue is price times quantity.]

p = price function for cars sold in America = p = 27 − 0.2x (for 0 ≤ x ≤ 135)

q = price function for cars sold in Europe = 15 − 0.1y (for 0 ≤ y ≤ 150)

r = price function for cars sold in Asia = 19 − 0.1z (for 0 ≤ z ≤ 190)

C = company's cost function = 26 + 3(x + y + z) = 26 + 3x + 3y + 3z

P(x, y, z) = profit function

x, y, and z are the numbers of cars sold in America, Europe, and Asia, respectively

Therefore, we have:

TR = Total revenue = px + qy + rz …………………………….. (1)

Substituting the relevant values into equation (1), we have:

TR = (27 − 0.2x)x + (15 − 0.1y)y + (19 − 0.1z)z

TR = 27x – 0.2x^2 + 15y – 0.1y^2 + 19z – 0.1z^2

Also,

P(x, y, z) = TR – C ……………………………………… (2)

Substituting the relevant values into equation (2), we have:

P(x, y, z) = 27x – 0.2x^2 + 15y – 0.1y^2 + 19z – 0.1z^2 – (26 + 3x + 3y + 3z)

P(x, y, z) = 27x – 0.2x^2 + 15y – 0.1y^2 + 19z – 0.1z^2 – 26 – 3x – 3y – 3z

P(x, y, z) = 27x – 3x +15y – 3y +19z – 3z – 0.2x^2 – 0.1y^2 – 0.1z^2 – 26

P(x, y, z) = 24x +12y +16z – 0.2x^2 – 0.1y^2 – 0.1z^2 – 26 ……………….. (3)

Therefore, the company's profit function P(x, y, z) = 24x +12y +16z – 0.2x^2 – 0.1y^2 – 0.1z^2 – 26.

(b) Find how many cars should be sold in each market to maximize profit. [Hint: Set the three partials Px, Py, and Pz equal to zero and solve. Assuming that the maximum exists, it must occur at this point.]

As indicated in the question, the number cars that should be sold in each market to maximize profit can be calculated by deriving the three partials Px, Py, and Pz from the profit function P(x, y, z), i.e. equation (3) in part a above, and set equal to zero and then solve as follows:

In America

From equation (3), we have:

Px = 24 – 0.4x = 0

Therefore, we have:

24 – 0.4x = 0

24 = 0.4x

x = 24 / 0.4

x = 60

In Europe

From equation (3), we have:

Py = 12 – 0.2y = 0

Therefore, we have:

12 – 0.2y = 0

12 = 0.2y

y = 12 / 0.2

y = 60

In Asia

From equation (3), we have:

Pz = 16 - 0.2z = 0

Therefore, we have:

16 - 0.2z = 0

16 = 0.2z

z = 16 / 0.2

z = 80

Based on the above calculations, the number of cars that must be sold in each market are 60 in America, also 60 in Europe and 80 in Asia.

Answer:

I think if you look up the equation on google there is a calculator and you may get some of your answers there

Step-by-step explanation:

Answer:where is graph

id like to help buuuuuuuuuuuuuuuuuut i cant

The rate of change is 62.5 miles per hour.

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

Given:

Take two points from graph as (1, 50) and (5, 300)

So, the rate of change is

=(300-50)/ (5-1)

= 250 /4

= 62.5

Hence, the rate of change is 62.5 miles per hour.

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Answer:

Yes

Step-by-step explanation:

9514 1404 393

Answer:

  -2 5/9

Step-by-step explanation:

w +(-x) -2/3 = w -x -2/3 = -5/9 -4/3 -2/3

  = -(5/9 +4/3 +2/3) = -(5/9 +(4+2)/3) = -(5/9 +2)

  = -2 5/9