6h + (-7.9d) - 16 + 5d - 3.5h =
please help

Answer

{3,1}

Explaination

3 +4=7[1]    x = -4y + 7

// Plug this in for variable  x  in equation [2]

  [2]    4•(-4y+7) - 3y = 9

  [2]     - 19y = -19

// Solve equation [2] for the variable  y

  [2]    19y = 19

  [2]    y = 1

// By now we know this much :

   x = -4y+7

   y = 1

// Use the  y  value to solve for  x

   x = -4(1)+7 = 3

Solution :

{x,y} = {3,1}

Answer:

Step-by-step explanation:

185 dogs and cats

Answer:

185 animals altogether ig?

Step-by-step explanation:

Answer:

[tex]P=\$362.5[/tex]

Step-by-step explanation:

From the question we are told that

Preston Earns \triangle x=$64-$81

Number of days D=5 days

Generally the average amount of money made by Preston is given by

[tex]X_a_v_g=\frac{64+81}{2}[/tex]

[tex]X_a_v_g=\$72.5[/tex]

Generally  a reasonable estimation of how much Preston will earn if he works 5 days P is mathematically given by

[tex]P=72.5*5[/tex]

[tex]P=\$362.5[/tex]

Answer:

Step-by-step explanation:

From the given graph the line is straight ,so it means that the relation between x and y is directly proportional

(or) you can also say that at each point the slope of the line is same

slope =y/x ,  slope= 26/2  = 65/2 = 117/9 =13

hence slope is same that's why relation between x and y is direct relation

y∝ x

y=k*x

k=y/x

putt any point one the line to find the value of constant of proportionality,

i putt (2,26)

Answer:

Step-by-step explanation:

.........

this ones confusing, i wish i could help sorry.

Answer:

77 lol

Step-by-step explanation:

Answer:

the answer is (x-5) (x+2)

Answer:

Y-axis

Step-by-step explanation:

Visualize It!

make a sketch of the x-y plane and grid on a piece of paper.

Now fold it so that quadrant II falls on quadrant III.

Does the crease fall along the horizontal (x-axis) or the vertical (y-axis) ??

Also please be sure to like it and thank me sir It would make me happy since i have 28 million help's on my other account.

Answer:

Step-by-step explanation: Acute

Answer:

Step-by-step explanation:

acute

Answer:

A) 6 x² - 7x - 20

Step-by-step explanation:

Explanation:-

Given p(x) = 2 x-5 and r (x) = 3 x +4

(pr)(x) = p(x) r(x)

         = (2x -5)( 3 x +4)

        = 2x(3x +4) -5( 3x +4)

       = 6 x² + 8x - 15 x - 20

       =  6 x² - 7x - 20

(pr)(x) = 6 x² - 7x - 20

Answer:

(1.5, 11)

Step-by-step explanation:

Answer:

The price of both tickets is $12 each

Step-by-step explanation:

System of Equations

Let's call:

x = price of a senior citizen ticket

y = price of a child ticket.

On the first day of ticket sales, the school sold 6 senior citizen tickets and 2 child tickets for $96. Setting up the first equation:

6x + 2y = 96

Dividing by 2:

3x +  y = 48         [1]

On the second day, the school sold 6 senior citizen tickets and 4 child tickets for $120:

6x + 4y = 120

Dividing by 2:

3x + 2y = 60         [2]

Subtracting [2] and [1]:

2y - y = 60 - 48

y = 12

From [1]:

3x +  12 = 48

3x = 48 - 12 = 36

x = 36/3 = 12

x = 12

The price of both tickets is $12 each

Answer:

B. quadrilateral; irregular

Step-by-step explanation:

Quadrilateral because it has 4 sides

Irregular because its angles and sides aren't all equal

Answer:

D

As temperature increases, so does mpg meaning better milage in warmer temperatures

The cosine of Ø is: [tex]\frac{1}{2}[/tex]

The ordered pair of a unit circle is represented as:

[tex](x,y) \to (\cos(\theta),\sin(\theta))[/tex]

The given parameters can be represented as:

[tex](x,y) \to (\frac{1}{2},\frac{\sqrt 3}{2})[/tex]

Recall that:

[tex](x,y) \to (\cos(\theta),\sin(\theta))[/tex]

Compare the above representation to:

[tex](x,y) \to (\frac{1}{2},\frac{\sqrt 3}{2})[/tex]

This means:

[tex]\cos(\theta) = \frac{1}{2}[/tex] and [tex]\sin(\theta) = \frac{\sqrt 3}{2}[/tex]

Read more about unit circle at:

https://brainly.com/question/11907132

Answer:

The first one is not linear equation and the second one is linear equation but I am not sure about the second one

Step-by-step explanation:

Linear equation has constant slope but non linear equation has vary slope

Answer:

probably the bottom left because it would be equal

Step-by-step explanation:

I hope this helps and you are not d.u.m.b, we just have those days sometimes. lol and this isn't really that easy.

Answer:

$17.70

Step-by-step explanation:

$15.00×18%=$2.70

$15.00+$2.70=$17.70

Answer:

15 m

Step-by-step explanation:

Height of buiding h= 9m

Lenght from building l= 12m

let the length of the rope be x=???

Applying Pythagoras theorem

x^2=h^2+l^2

x^2= 9^2+12^2

x^2= 81+144

x^2=225

square both sides

x=√225

x=15 m

Hence the length of the rope is 15 m

Answer:

A solution of the system of equation given in the question is;

(2) x = 7 and y = 23

Step-by-step explanation:

The given system of equation are;

2·x + 3·y = 83...(1)

y = 2·x + 9...(2)

Substituting the value of y = 2·x + 9 from equation (2) into equation (1) gives;

2·x + 3·y = 2·x + 3 × (2·x + 9) =  83

∴ 2·x + 6·x + 27 = 83

8·x = 83 - 27 = 56

x = 56/8 = 7

x = 7

By substituting the value of x = 7 derived above into equation (1), we have;

y = 2·x + 9

Where;

x = 7

y = 2 × 7 + 9 = 14 + 9 = 23

y = 23.

Answer:

4ft

Step-by-step explanation:

sorry for my mistake

Answer:

4 ft

Step-by-step explanation:

the ratios are as follows

X/6=50/75

50(6)=X(75)

300=75X

X=4

Answer:

P = -10

Step-by-step explanation:

P = 4 - 2r

P = 4 - 2 (-7)

P = 18

Answer:

P = 18

Step-by-step explanation:

p = 4 - 2r

p = 4 - 2(-7)

p = 4 + 14

p = 18

Therefore, your answer would be P = 18

Answer:

Line A

-3+3=0

Step-by-step explanation:

Answer:

11.5 months

Step-by-step explanation:

All you have to do is divide 23,000 by 2,000

545,00000952 your welcome :)