Please help algebra work needs to be shown please help

The total measure of angles in a triangle is 180°.

3x° + 2x° + 4x° = 180°

9x° = 180°

x° = 180° ÷ 9

x° = 20

Our 3 angles are:

3(20) = 60°

2(20) = 40°

4(20) = 80°

Done.

Answer:

Step-by-step explanation:

3x+2x+4x=180

9x=180

x=180/9=20

3x=3×20=60°

2x=2×20=40°

4x=4×20=80°

Step-by-step explanation:

x=4 and y= 1 because of 4+1=5 and add 2y to both sides

x-2y+2y=2+ 2y

x=2y+2

4-2=2

[tex]\left \{ {{x+y=5} \atop {x-2y=2}} \right.[/tex]

Here we have 2 equations in one system.

System of Equations/Simultaneous Equations are for finding the intercepts of both graphs.

We can solve these Simultaneous Equations in many ways. However, I'll be solving by substitution.

To solve by using substitution, we need to move either x or y to the another side. I'll move x term to another side for the first equation. (We'll substitute the first equation in the second.)

[tex]\left \{ {{y=-x+5} \atop {x-2y=2}} \right.[/tex]

Now we substitute y = -x+5 in x-2y = 2

[tex]x-2(-x+5)=2\\[/tex]

Then distribute -2 in (-x+5) | Note that multiplying the negative will get positive. |

[tex]x-2(-x+5)=2\\x+2x-10=2\\3x=2+10\\3x=12[/tex]

We should get this. When we get this, we move 3 to divide 12 (Opposite when moving to another side so from plus to minus and from multiply to divide.)

[tex]x=4[/tex]

But we are not done yet. We have to find the y-value. After all they are two variables equations.

If we want to find the y-value then we have to substitute x = 4 in any given equations. I'd suggest to substitute in the equation that doesn't have a coefficient with high value.

So I'll be substituting in x + y = 5 instead.

Substitute x = 4 in x + y = 5

[tex]4+y=5\\y=5-4\\y=1[/tex]

Thus, we get both x and y value. Answer in either coordinate point or writing form.

Therefore, the answer is

x = 4 when y = 1 or (4,1)

Both works. Hope this helps.

Answer:

The answer is 7

Step-by-step explanation:

I don't know how to explain it really but just divide 4/3 by 28/3 and you should get the answer of x

Answer:

7

Step-by-step explanation:

Answer:

40 percent of the children that play soccer are girls in the league

Step-by-step explanation:

just divide 64/160 and get 40

Answer:

40%

Step-by-step explanation:

64/160 = 0.4

0.4 = 40%

Answer:

414

Step-by-step explanation:

the ratio of adult tickets to student tickets = 2 to 7  num of student tickets / 92 = 7 / 2 ... x = 414 total tickets sold.

The slides are different from each other so the chance of getting one of them is 1/18.

The chance of getting it again is 1/18 × 1/18 = 1/324

So, P(a number both times) = 1/324

Answer:

9/18 or 1/2

Step-by-step explanation:

you have 9 numbers and 9 letters. you know that you have 18 on the bottom because or 9+9=18. this just means that the probability that you will get a number twice is 1/2 because the two are independant.

Answer:

x+12

Step-by-step explanation:

(0+c)+12

0+c+12

c+12+0

c+12

Hope this helps plz hit the crown :D

The problem to solve is:

(0+c)+12

0+c evaluates to +c

0 + 12 = 12

The answer is 12+c

(0+c)+12 evaluates to 12+c

The final answer is

12+c

Hey there!

“-3 < x - 10”

SOME people treat the “<” “>” as an equal sign to make these types of problems easier to solve!

-3 = x - 10

Flip the equation around

x - 10 = -3

ADD both of your sides by 10

Like: x - 10 + 10 = -3 + 10

CANCEL out: -10 + 10 because it gives us 0

Keep: -3 + 10 because it gives us the value of x

-3 + 10 = x

Solve that above and you have your answer: x = 7 ☑️

Overall answer: x < 7

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Answer:

I would say that answer is proportional

Step-by-step explanation:

Answer:

a = 0 and b = literally any number

Step-by-step explanation:

because anything to the power of 0 = 1,

so e.g. 2^0 = 1 or 8^0 = 1

this is just a rule in powers that you just have to know

and for part b anything × 0 = 0, so it can be anything

hope this helps :)

Step-by-step explanation:

Marie had 160

Josh has 150

Trey has 600

Answer:

III. Functions f and g are inverse functions.

Step-by-step explanation:

Answer:

None of statements are true

Step-by-step explanation:

The domain and range of the functions, Domain includes all possible inputs and range includes all possible outputs , are-

1.  f(x) = 4x-3

Domain - all real numbers or

Range - all real numbers

2. G(x) = | 1-2x |

Domain- all real numbers

Range - All real numbers≥ 0

3. f(x) = x²-2x+1 / x-1

this can be simplified as ( x-1)²/(x-1) = x-1

Domain - all real numbers

Range- all real numbers

4. f(x) = {x-1 if x<3,

             2x+1 if x ≥3 }

Domain - all real numbers

Range - All real numbers

5. y = [tex]\sqrt{4-x}[/tex]

Domain - All real numbers <4

Range - all real numbers ≥0

Mathematical functions are analogous to vending (soda) machine operations. When you put in a certain amount of money, you can choose from a variety of sodas. Similarly, when we use functions, we enter different numbers and get new numbers as a result. The primary characteristics of functions are domain and range. A soda can be purchased with quarters or one-dollar bills. If you put in pennies, the machine will not give you any soda flavor. As a result, the domain represents the inputs available here, which are quarters and one-dollar bills. A cheeseburger will not be served from a soda machine, no matter how much you pay. Thus, the range represents the possible outputs we can have here, i.e., the

To know more about Domain and Range - https://brainly.com/question/28135761

#SPJ9

Answer:  Boolean Operators are simple words used as conjunctions to combine or exclude keywords in a search, resulting in more focused and productive results. Examples are  (AND, OR, NOT or AND NOT) .

Step-by-step explanation:

Answer:

f - 0.26f

Step-by-step explanation:

Answer:

The numbers:

1, -3, 2, -9, 3, -15, 4, -21,

are not linear.

Step-by-step explanation:

If it was linear:

4, 3, 2, 1, -3, -9, -15, -21

Answer:

14[tex]\frac{2}{7}[/tex]%

Step-by-step explanation:

We can just follow the hint.

Amount of discount = $84 - $72

                                 = $12

Percentage of discount = [tex]\frac{12}{84}[/tex] × 100%

                                       = 14[tex]\frac{2}{7}[/tex]%

Answer:

14.3% discount.

Step-by-step explanation:

Heya! So by the hint that they gave us, I subtracted 72 from 84, and then divided the 12 by 84. The true answer is 0.143 (rounded to the hundredth), getting you close to the initial 12. I hope this helped at least a little bit!

Answer:

4(n + 3) = 60

Step-by-step explanation:

In the question it says '3 more than the usual' and that is a big hint that it is 4(n + 3) = 60

Answer: Acute ask goigle

Answer:

i bite my tongue its a baddd habit

28 + 10√3

Step-by-step explanation:

first, multiply the two together. √3 * √3 = 3. √3 * 5 = 5√3. 5 * √3 = 5√3. 5 * 5 = 25.

We have 3 + 5√3 + 5√3 + 25. Combine like terms and you should get 28 + 10√3.

Answer:

Space Explorer B travels 6800 miles more than Space Explorer A in one hour.

Step-by-step explanation:

Space Explorer A travels 7000 miles less than Space Explorer B in one hour.

Two or more expressions with an equal sign are defined as an equation.

Given that, Space Explorer A flies 28800 miles in 24 hours.

24 hours = 28800 miles

1 hour = 28800/24 miles

1 hour = 1200 miles

Hence, Space Explorer A travels 1200 miles in 1 hour.

Now, the equation representing the distance, y, traveled by Space Exploral B in x hours is:

y = 8200x

Substitute x = 1:

y = 8200

Therefore, Space Exploral B travels 8200 miles in 1 hour.

The difference between the distance traveled by Space Exploral B and Space Exploral A is:

8200 - 1200

= 7000

Hence, Space Explorer A travels 7000 miles less than Space Explorer B in one hour.

Learn more about equations here:

https://brainly.com/question/10413253

#SPJ2

Answer: The answer is 9+11s :)

Step-by-step explanation:

Combine like terms

9+18s-7s

9=11s  so I don't what you mean but in case you want to find  s it will be

11  11

S=9/11

Answer:

A.Josiah

5×4= 20+100=120

10×4=40+40=80

120 is more than 80

After 4 weeks , Josiah has 40 dollars more in his savings account.

Given :

Josiah starts with $100 in his savings account and adds 5 per week.

Let x be the number of weeks they started saving

Total money in savings account = 5 (number of weeks) + initial amount

Total money = [tex]5x+100[/tex]

Kiri starts with 40 in her savings account and adds 10 each week.

Total money = 10x+40

Now we need to find out how much money each have after 4 weeks

lets replace x by 4

Josiah have [tex]5(4)+100=120[/tex]

Kiri have [tex]10(4)+40= 80[/tex]

120-80=40

So , Josiah have 40 dollars more  in his savings account.

Learn more : brainly.com/question/20164685

Answer:

the answer in the photo, look at it

Answer:

9

Step-by-step explanation:

GCF = Greatest Common Factor

Answer:

9

Step-by-step explanation:

Answer:

remove the bracket on the other side by multiplying 180 by (2-n)

subtract 360 from 1260 to remain with -180n on the other side

divide both sides by -180n

then n become -5

Answer:

m<FAB = 75°

m<BAC = 105°

Step-by-step explanation:

First, find the value of x.

(13x - 3)° = (3x + 2)° + 55° (exterior angle theorem of a ∆)

Solve for x

13x - 3 = 3x + 2 + 55

13x - 3 = 3x + 57

Collect like terms

13x - 3x = 57 + 3

10x = 60

Divide both sides by 10

x = 6

✔️m<FAB = 13x - 3

Plug in the value of x

m<FAB = 13(6) - 3 = 78 - 3

m<FAB = 75°

✔️m<BAC = 180 - m<FAB (angles on a straight line/supplementary angles)

m<BAC = 180 - 75 (substitution)

m<BAC = 105°

Answer:

x = 2.5

Step-by-step explanation:

y varies directly with x means the times that y increases, the times x increases and vice versa.

If y increases from 3/5 to 12 is being increased:

12 / 3/5 = 20 times

Thus, the value of x is being increased by definition, also 20 times. The value of x is:

x = 0.125 * 20 = 2.5