Brainliest Oppurtunity, thanks.

Answer:

[tex]x = 45[/tex]

Step-by-step explanation:

You'll solve it like this:

[tex]2x+45+x=180[/tex]

Grap it on desmos to check the x value

[tex]x=45[/tex]

Check your answer by substituting:

[tex]2(45)+45+45[/tex]

Which is then equal to [tex]180[/tex]

Answer:

1. total area = 135mi²

Step-by-step explanation:

hope this helps :)

Answer:

Q1: 374

Q2: 5/9

Q3: 3/8

Step-by-step explanation:

Q1:

541−167

=541−167

=541+−167

=374

Q2:

8/9 - 3/9

8 - 3 /9

= 5/9

Q3:

5/8 - 2/8

5 - 2 / 8

= 3/8

Answer:

145 Hamburgers were sold on Saturday

Step-by-step explanation:

435/3=145

145 x 2=290

290+145=435

Answer:

145 hamburgers

290 cheeseburgers

Step-by-step explanation:

let 'h' = # of hamburgers

let 'c' = # of cheeseburgers

h + c = 435

c = 2h

substitute '2h' for 'c' in the first equation:

h + 2h = 435

3h = 435

h = 145

c = 2(145) = 290

Answer: 2

Step-by-step explanation:

Using the Z rule, we get the angle of DCE is 2x + 53

The angle DEC is a right angle as the diagonals of a rhombus always make a right angle

So we get the equation

3x + 7 + 2x + 53 + 90 = 180

5x = 10

x = 2

Answer:

4-(3x+3)=4x

4-3x-3=4x

4-3=4x+3x

1=7x

x=1/7

or

4-(3x+3)=4x

4-3x-3=4x

-3x-4x=-4+3

-7x=-1

x=-1/-7

-/-=+

so -1/-7 it equal to 1/7

you dont want negative x

x=1/7

Answer:

1/7

Step-by-step explanation:

Take your equation: 4-(3x+3)=4x

Then, use the distributive property to carry out the negative sign, so you get   4-3x-3=4x

Add 3x to both sides to get:  4-3=4x+3x

Add like terms together to get:  1=7x

Flip the sides to get: 7x=1

Divide by 7 on both sides to get 7x/7=1/7

Simplify to get: x=1/7

Answer:

a=12

Step-by-step explanation:

a/40=3/10

10 x 4=40, so

3 x 4=12

a=12

Answer:

[tex]\boxed{\sf{x=12}}[/tex]

Step-by-step explanation:

Isolate the term of a from one side of the equation.

Solution: Multiplication property of equation.

a/40=3/10

First, multiply by 10 from both sides.

[tex]\sf{\dfrac{a}{40}\cdot \:10=\dfrac{3}{10}\cdot \:10}[/tex]

Solve.

a/4=3

Then, multiply by 4 from both sides.

4a/4=3*4

Solve.

3*4=12

a=12

As a result, the correct answer is a=12.

I hope this helps you! Let me know if my answer is wrong or not.

Answer:

[tex]x\geq 15[/tex]

Step-by-step explanation:

Samuel wants at least 15 grams

Let's expand on "at least 15"

It means that Samuel wants no less than 15, but 15 or more

It could be 16, but not 14

To create an inequality, 15 or more can be written as [tex]x\geq 15[/tex] (x is 15 more more)

The answer is [tex]x\geq 15[/tex]

Hope this helps :)

Have a nice day!

Answer:

C = 48

Step-by-step explanation:

All angles together will equal 180. 1 Angle is a right angle at 90. That leaves 90 for the remaining 2 angels.

set your formula as 10x-8 + 4x+28 = 90 and solve for x

x = 5

now substitute 5 in place of x

c= 4*5 + 28

your answer is correct, dw.

Answer:

you are correct :)

Step-by-step explanation:

-x^2 - 6x + 16 --> reverse the operations...

x^2 + 6x - 16 --> factor

(x + 8)(x - 2) --> hope this helps

:D

Answer:

100 bricks are required to construct the wall.

Step-by-step explanation:

All calculations should be done with unit in centimetres.

volume of the wall = length * width * height

                               =  15 * 20 * 200

                               = 60000 cm³

one brick volume =  length * width * height

                             =  15 * 8 * 5

                            = 600 cm³

So to fill the entire wall with x walls:  volume of wall / one brick volume

                                                         → 60000 / 600

                                                         → 100 bricks

Answer:

D

Step-by-step explanation:

substitute the x- coordinate of each point into the equation and if the value obtained is equal to the y- coordinate then the point makes the equation true.

A (- 3, - 1 )

y = 3(- 3) = - 9 ≠ - 1 ← false

B (3, 1 )

y = 3(3) = 9 ≠ 1 ← false

C (6, 4 )

y = 3(6) = 18 ≠ 4 ← false

D (2, 6 )

y = 3(2) = 6 ← true

Answer:

length of RT = 4

Step-by-step explanation:

triangle RST has been enlarged by 3 as the length of ST is 3x longer than BC

so the length of RT (12) can be divisible by 3 that gives AC the length of 4cm

Answer: That hexagon can be partitioned into six equilateral triangles, each with side of 9 meters. The area of an equilateral triangle is which in this case is which is roughly 35.074 square meters. The area of the hexagon is six times that, which comes to about 210.44417312 square meters.

Step-by-step explanation:

Hoi there :)

The question is unclear. Plesse repost with full question and picture

Answer:

-You should already be familiar with algebra and geometry before learning trigonometry. From algebra, you should be comfortable with manipulating algebraic expressions and solving equations. From geometry, you should know about similar triangles, the Pythagorean theorem, and a few other things, but not a great deal.

-Measure the lengths of the sides of sets of similar right angled triangles and find the ratio of sides.

-Investigate the relationship between these ratios and the angle size.

-Use calculators or tables to find the sine, cosine and tangent of angles.

Step-by-step explanation:

basic knowledge i guess

Before beginning trigonometry, you need be comfortable with algebra and geometry. You should be comfortable handling algebraic expressions and solving problems after studying algebra. You should know about similar triangles, the Pythagorean theorem, and a few other things from geometry, but not much else. Students can use trigonometry to calculate the precise angle of a triangle's sides, the distance between distinct points on a triangle, and other information that is useful in a number of situations. Trigonometry is an essential component of ICSE Class 10 Mathematics since it combines memorization, conceptual knowledge, and problem-solving abilities. Because many of the earth's natural formations resemble triangles, it aids children in their comprehension of the globe.

Hope this helps

~ ROR

Answer:

2587

+

9534

—————

12 121

This is the answer :)

Answer:

Solution

or,X(X-1)=9(X-3)

or,X2-X=9X-18

or,9X+X=18-X2

or,10X=18-X2

I think it will help you.

Answer:

3(8+0,5)=25,5 use calculator :D

Answer:

the answer is 7

Step-by-step explanation:

7 other spirt hate

Answer:

-3

Step-by-step explanation:

gradient => (-1-2)/(-1+2)

gradient => -3/1

gradient => -3

Answer:

18.33

Step-by-step explanation:

15x=275

x=275÷15

x=18.33

3y = 5

6 = 2x + 2

x = 2, y = 5/3

2x - 2 = 2   ←

Answer:

y = - 4

Step-by-step explanation:

3y = 2x - 6 ................. (1)

4x + 3y = - 24 ........... (2)

(1)  ---->  (2)

4x + ( 2x - 6 ) = - 24

6x - 6 = - 24

x - 1 = - 4

x = - 3

3y = 2 ( - 3 ) - 6

3y = - 12

y = - 4

( - 3 , - 4 )

Answer:

the answer is ................. nothing

Answer:

Step-by-step explanation:

26 liters of yellow paint need to be added for the ratio of green paint to yellow paint to be 1:6.

An equation is an expression that shows the relationship between two or more variables and numbers.

From the question:

Amount of green paint = (3/8) * 16 = 6 liters

For the ratio of green paint to yellow paint to be 1:6, let y represent the number of yellow paint to be added.

6 = (1/7) * (16 + y)

16 + y = 42

y = 26

26 liters of yellow paint need to be added for the ratio of green paint to yellow paint to be 1:6.

Find out more on Equation at: https://brainly.com/question/2972832

Answer:

12.43

Step-by-step explanation:

Answer:

7t

Step-by-step explanation:

Just combine the coefficients

6t + 4t - 3t = (6+4-3)t = 7t

Answer:

t(6+4-3)

=t(7)

=7 t

..........

Answer:

We have a problem here, Houston.

Step-by-step explanation:

Is "(x+5)2=36" supposed to be (x+5)^2=36 ?

If so,

x = ± 11

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

If it is indeed (x+5)2=36

then:

2x + 10 = 36

2x = 26

x = 13

None of the answer options fir either of these two interpretations of the equation provided.  Please check the equation.

Answer:

-11 and 1

Step-by-step explanation:

did the test