x=2y-z/4 solve for z

idk how to solve it even though I'm in algebra 1 lol :/

Answer:

50 degrees

Step-by-step explanation:

180=80+x+51+x+51

100=2x+102

-2=2x

x=-1

-1+51=50

Answer:

A = 82, B = 67 and C = 31

Step-by-step explanation:

Let the angles in the given  triangle be;

              A, B and C;

A is the largest angle and C is the smallest angle;

        B = 5 + 2C ------ i

        A = 3C - 11  ------ ii

A+ B + C = 180°  ----- iii

   Now, if we add equation i and ii;

            A + B = 5+2C + 3C - 11

            A+B = 5C - 6  ----- iv

Now insert equation iv into iii;

            5C -6 + C = 180

               6C = 180 + 6

               6C = 186

                   C = 31

A = 3C - 11 = 3(31) - 11 = 93 - 11  = 82

B = 5 + 2C = 5 + 2(31) = 67

A = 82, B = 67 and C = 31

Answer:

x>2

Step-by-step explanation:

first you collect like terms together so ,

u bring 5x to the other side to be 2x+5x-3>11 ,

you take -3 to the other side to be 2x+5x>11+3

therefore it will be 7x>14 ,so you divide both sides with 7 to get

x>2

Answer:

Step-by-step explanation:

Solving in steps

Answer:

105°+75°=180°

X=180°

The equation to solve the width of the rectangle is

24 = 2(length + width)

The width of the rectangle is 12 - x where x is the length of the rectangle.

A rectangle is a two-dimensional shape where the length and width are different.

The area of a rectangle is given as:

Area = Length x width

We have,

Length = x

Perimeter = 24 feet

The perimeter of the rectangle = 2( length + width)

Now,

24 = 2 (length + width)

12 = x + width

The width of the rectangle.

Width = 12 - x

Thus,

The width of the rectangle is 12 - x.

Learn more about rectangles here:

https://brainly.com/question/15019502

#SPJ2

Because the equation is a positive number lower than the original

Answer:

y= -4

Step-by-step explanation:

Answer:

Either 133 or 134 T-shirts

Step-by-step explanation:

If you divide the profits at the end of the month by $ per T-shirt, you get approximately 133.333 T-shirts, which rounds to 133-134 T-shirts. Basically the margin of error for this answer is 1.

Answer:

400x800=x solve for x , X =320000

X÷ 6 = 53333.3333333

they sold 53333.333333 T-shirts

Answer:

Option C is correct.

Step-by-step explanation:

Function is a Relation from set A to Set B whose every element of set A has one and only one image  in Set B.

Option A).

(0,2) , (2,3) , (0,-2) , (4,1)

here 0 has two image 2 and -2.

So, this is not function.

Option B).

(1,2) , (1,-2) , (3,2) , (3,4)

here 1 has two image 2 and -2.

So, this is not function.

Option C).

(1,6) , (2,7) , (4,9) , (0,5)

Here every element has only one image.

So, this is a function.

Option D).

(2,4) , (0,2) , (2,-4) , (5,3)

here 2 has two image 4 and -4.

So, this is not function.

Therefore, Option C is correct.

Answer:

15%

Step-by-step explanation:

Jose thought 12/80 of the movies were very good.

To find the answer, we divide using 12/80.

12 divided by 80 is 0.15 which is 15%.

Answer:

Original sales price is $30

Step-by-step explanation:

[tex]x(1 - .4) = 18[/tex]

solve for x

[tex]x = \frac{18}{(1 - .4)} [/tex]

[tex]x = 30[/tex]

Answer:

[tex]Laura = 0.60[/tex]

[tex]Billy = 0.50[/tex]

0.60 > 0.50

Step-by-step explanation:

Given

[tex]Laura = 60\ shades[/tex]

[tex]Billy = 50\ shades[/tex]

Required

Represent using decimal number and compare

From the question, we understand that there are 100th grids;

So:

[tex]Laura = \frac{60}{100}[/tex]

[tex]Laura = 0.60[/tex]

[tex]Billy = \frac{50}{100}[/tex]

[tex]Billy = 0.50[/tex]

Comparing both decimals;

Since 0.60 is greater than 0.50, we have:

0.60 > 0.50

Answer:

135

Step-by-step explanation:

Answer:

$35

Step-by-step explanation:

you take a point off the graph and divide the cost of tickets by the number of tickets.

Answer:

35

Step-by-step explanation:

10 tickets is 350

So 1 tickets is 35

Answer:

y = x - 2

Step-by-step explanation:

Parallel lines have the same slope, so the line will also have a slope of 1.

Plug in the slope and given point into y = mx + b to solve for b:

y = mx + b

-1 = 1(1) + b

-1 = 1 + b

-2 = b

Plug in b and the slope into y = mx + b

y = x - 2 is the equation

Answer:

So that the other person can get brainiest

Step-by-step explanation:

Answer:

25°

Step-by-step explanation:

Since a is parallel to b, angle 4 = angle 5 since they are alternate angles

Therefore 120°=4x+20°

120°-20°=4x

100°=4x

x=25°

Answer:

993.5

Step-by-step explanation:

106×5.75 +128×3

Answer:

5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

correct on eduinity

Answer:

x=10

Step-by-step explanation:

2(x-4)=12

2x-8=12

2x=20

x=10

Answer:

[tex]\huge{\boxed{\sf{10}}}[/tex]

Step-by-step explanation:

[tex]2(x - 4 ) = 12[/tex]

Distribute 2 through the parentheses

⇒[tex]2*x - 2*4 = 12\\[/tex]

⇒[tex]2x - 8 = 12\\[/tex]

Move 8 to right hand side and change its sign.

⇒[tex]2x=12+8[/tex]

Add the numbers: 12 and 8

⇒[tex]2x=20[/tex]

Divide both sides by 2

⇒[tex]\frac{2x}{2} = \frac{20}{2}[/tex]

⇒[tex]x = 10[/tex]

The value of x is 10.

Hope I helped!

Best regards! :D

~TheAnimeGirl

Add in order from left to right:

-9 + 5 = -4

-4 -10 = -14

-14 + 3 = -11

False, it does not equal 2.

Answer:

False. It equals -11.

Step-by-step explanation:

Simply because if you add -10+3, you get -7. Then if you add -9 and 5, you get -4. when you add -4 and -7 together, you get -11.

Answer:

no

Step-by-step explanation:

there is no line under the less than sign so it is not equal to

Answer: f(x), g(x)

Step-by-step explanation:

h(x) is a linear function

k(x) would be an exponential function if the function looked like: 64,16,4,1,.25,.0625,.0156

Answer:

A,B is the answer of this question

Answer:

18. -0.425

19. 1.83

20. 4.1

21. 1.0416666666667

With the last one I'm not sure what place it was supposed to be rounded by. Sorry about that!

Answer:

A number plus two and three-tenths. → x + 2.3

A number divided by three-tenths. → x / .3

Four, subtracted from three times a number. → 3x - 4

Four, added to twice a number. → 2x + 4

Hope that helps.

Answer:

3x−2

Step-by-step explanation:

Combine 2x and x to get 3x.

3x−3+1

Add −3 and 1 to get −2.

3x−2

Answer: 170

Step-by-step explanation:

Let y = ax²+bx+c then substitute all of orders. we'll be doing equations system.

[tex]a-b+c=0\\c=3\\a+b+c=2[/tex]

Ok we are at this.

Substitute c = 3 into equation 1 and equation 3.

[tex]a-b+3=0\\a-b=-3[/tex]

[tex]a+b+3=2\\a+b=2-3\\a+b=-1[/tex]

then addition and subtract for a-b = 3 and a+b = -1

[tex]a-b=-3\\a+b=-1\\2a=-4\\a=-2[/tex]

Therefore a = -2, substitute a = -2 in a-b+c=0 or a+b+c=2 but i'm doing a-b+c=0 one.

[tex]a-b+c=0\\\\-2-b+3=0\\-b+1=0\\-b=-1\\b=1[/tex]

Therefore b = 1, substitute both a, b and c into y=ax²+bx+c as we get,

[tex]y=-2x^2+x+3[/tex] #

25%

this is the answer.....

Answer: 1/4 or 25%

Step-by-step explanation:

I dont have one unfortunately due to my common sense being on a high level.

Jelly Jelly Jelly Jelly Jelly Jelly Jelly Jelly Jelly Jelly Jelly Jelly Jelly Jelly Jelly

Answer:

Time = T half–years , Rate = 5 % per half year

2

Step-by-step explanation:

we know the formula:

68921=64000（1+0.05/2)^2t

or,68921/64000=（41/40)^2t

or, （41/40)^3=（41/40)^2t

or 2t=3

or, t=3/2 years