Mathematics High School

Find the value of x.
(3x+20) º
12°

Find The Value Of X.(3x+20) 12

Answers

Answer 1

Answer:

x=32°

Step-by-step explanation:

2x+3x+20=180 co interior angle

5x=180-20

x=160/5=32°

Answer 2

Answer:

12°

Step-by-step explanation:

a straight line adds up to 180°

(3x+20)+2x=180

3x+2x+20=180

5x+20=180

5x=180-20

5x=60

5x/5=60/5

x=12

x=12°

Related Questions

Sketch the graph of the following equations: y=x+5, y=-(x+5), and y = |x+5|

Answers

is a great game but I can’t have any problems at the same level that you have a few things that 234x234

The graph of functions y=x+5, y=-(x+5), and y = |x+5| are shown in figure.

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

Equations are,

y = x + 5

y = - (x + 5)

y = |x + 5|

Since, All equations shows equation of line.

Hence, We can draw all the equations as shown in figure.

y = x + 5

Slope = 1

y - intercept = 5

y = - x - 5

Slope = - 1

y - intercept = - 5

Thus, The graph of functions y=x+5, y=-(x+5), and y = |x+5| are shown in figure.

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Which of these expressions or phrases can be used to represent the model choose all the correct answers



Pls no BOT part ;(

Answers

Step-by-step explanation:

anyway.. for your answer i only know that number of fifths in 1 is correct I dont know about the rest.

please help i’ll give brainless

Answers

the answer is D. 40% of the fruit in the bowl are apples:)

Answer:

D.  40%

Step-by-step explanation:

The are 6 apples out of 15 fruit. To find the percentage, first write it as a fraction.

6/156/15 can be simplified to 2/52/5=0.4=40%

Help i dont know how to do it, pls explain also how did you get ur answer so i can gain information how to do it next time. Thank you​

Answers

You can found the coordinates along the sides MQ and NQ

The distance for MQ is 6, and for NQ is 8

Then you can just use the Pythagorean Thm since it is a right triangle

6^2+8^2=MN^2
36+64= MN^2
100= MN^2
MN=10

So it would be D

Amanda, Boris, and Jose sent a total of 124 text messages during the weekend. Amanda sent 8 fewer messages than Jose
Boris sent 4 times as many messages as Jose. How many messages did they each send?

Answers

Answer:

Amanda= 14

Boris = 88

Jose= 22

Step-by-step explanation:

Amanda= jose-8

Boris = 4×jose

Jose= Jose

total all = 124

(jose-8)+(jose×4)+(jose)= 124

so we substitute jose with X .

(X-8)+(4X)+(X)=124

6X-8= 124.

6X=124+8

X=132/6

X= 22.

so that total jose is 22, minus 8 we get Amanda, times 4 we get Boris.

1. Paula has x cups of food in a container to feed her dogs. She pours 1.5 cups of food into their bowls. There is now 5.25 cups left in the container. Which equation would be used to solve this problem?

a. 1.5 - x = 5.25
b. 5.25 - x = 1.25
c. x - 1.5= 5.25
d. x + 1.5= 5.25


2. A box of donuts cost $9. You want to send donuts to the local nursing home. Set up an equation to find how many boxes you can send if you have $72.

a. 72 = 9 + b
b. 72 = 9 - b
c. 72 = 9b
d. 72 = 9/b


3. Jordan is purchasing a board to build a bookcase. He wants to divide the board into 1.75 foot sections and he needs 6 sections. Which equation can be used to solve this problem?

a. b/1.75 = 6
b. 1.75b = 6
c. b - 1.75 = 6
d. b + 1.75 = 6

Answers

1.D
2.C
3.B
If you need to know the amount let me know.

If O is an angle in standard position and its terminal side passes through the point
(3,-1), find the exact value of tan 0 in simplest radical form.
please help !

Answers

Answer:

-1/3

Step-by-step explanation:

If correct I’ll give brainlist

Answers

This is so easy just do it your self

15 tractors each working 8 hours a day take to take eight days to Plough a piece of land how many days will it take 24 tractors each working 10 hours a day to plough the same piece of land​

Answers

It will take 24 tractors, each working 10 hours a day, a total of 4 days to plough the same piece of land.

To determine how many days it will take 24 tractors, each working 10 hours a day, to plough the same piece of land, we can use the concept of man-hours.

Given that 15 tractors, each working 8 hours a day, took 8 days to complete the task, we can calculate the total man-hours required to plough the land.

Total man-hours = Number of tractors * Hours per tractor * Number of days

Total man-hours = 15 tractors * 8 hours/tractor * 8 days

Total man-hours = 960

Now, let's calculate the number of days required for 24 tractors, each working 10 hours a day, to complete the task.

Number of days = Total man-hours / (Number of tractors * Hours per tractor)

Number of days = 960 / (24 tractors * 10 hours/tractor)

Number of days = 960 / (240)

Number of days = 4

As a result, ploughing the same plot of land will require 24 tractors to labour for a total of 4 days at 10 hours per day each.

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write a statement that correctly describes the relationship between these two sequences: 2, 4, 6, 8, 10 and 1,2,3,4,5.

Answers

Answer:

The relationship between these two sequences is it always doubles.  When we look at each sequence, 1, 2, 3, 4, 5, each number is multiplied by 2 to create the other sequence.

1 x 2 = 2.

2 x 2 = 4.

3 x 2 = 6.

4 x 2 = 8.

5 x 2 = 10.

When we arrange these numbers, 2, 4, 6, 8, 10, this is the exact sequence as before.  Therefore, this is the relationship.

Answer: 2, 4, 6, 8, 10,                           <                                |

                                                                                               |

Step-by-step explanation:                                                    |                                if you just  arange the numbers to 1 x 2 = 2                         |

                                                          2 x 2 = 4                       |

                                                          2 x 3 = 6                       |

  and then so on and so on you would get this answerer. |

8 + 7 + (-4) on a number line

Answers

Answer:

11 is the answer

Step-by-step explanation:

8+7-4

15-4

11

on number positive 11 is the answer

its just simple addition and substraction then the result can displayed on number line where 11 comes on number line mark that point

To determine the amount of peanuts a bag will hold, Toby needs to find the
A: Area
B: Length
C: Perimeter
D: Volume

Answers

Answer:

D: Volume

Step-by-step explanation:

Answer:

area

Step-by-step explanation:

Esh deposits $3500 in an account that
earns 3.75% interest each year. After the
first year, Esh has $3631.25 in the account.
After the second year, Esh has $3767.42 in
the account, and after the third year Esh has
$3908.70 in the account.

Answers

Answer:

Compound interest

Step-by-step explanation:

The question requires us to determine if the interest earned is a simple or compound interest

Simple interest = amount deposited x time x interest rate

Future value with compounding = A( 1 + r)^n

A = amount deposited

r = interest rate

n = time

We would calculate the simple interest and the future value in year 2

Simple interest in year 2 = $3500 x 0.0375 x 2 = 262.50

Future value in 2 years with a simple interest = 262.50 + 3500 = $3762.50

Future value in year 2 with compounding = 3500 x (1.0375)^2 = $3767.42

The value provided in year 2 with compounding matches that provided in the question. Thus, it is compounding of interest that is done

PLEASE HELP!!

Also the last option is

4 units left and 3 units down

Answers

Answer:

B

Step-by-step explanation:

twins Denise and Deandre always flip a coin to describe who gets to ride in the front seat to school. during a 6-week period (30 school days), how many times does Denise likely get the front seat ?

Answers

15 because it is a 50/50 chance each coin flip meaning you spilt 30 in half making it 30

3.3 divided by 0.3 please help

Answers

11 I searched it up

Please help its urgent
Alexandra finds out that she can give 3 haircuts and 2 hair dyes in 315 minutes.Giving 2 hair cuts and 4 hair dyes takes 450 minutes.How long does it take her to do 1 haircut.
3x+2y=315
2x+4y=450
30 minutes
45 minutes
60 minutes 3x+4y=450
90 minutes 2x+4y=315

Answers

450/30

15

15/3x =5

x= 5

5+2y= 315

5-5+2y =315-5

2y = 310

2y/2 = 310/2

y=155

Step-by-step explanation:

450/45

10

2x+4y=450

2×5=10

10+(4×155)

=620/155

=4

10/5=2

Movie tickets are $4 for regular admission and $3 for seniors. On a night where there were 190 people and total sales of $720 how many regular admission tickets were sold?
A. 50
B. 150
C. 40
D. 140

Answers

answer is B: 150

write two equations

r+s=190
4r+3s=720

solve by substitution

the get r=150 s=40

Answer:

150

Step-by-step explanation:

So if we rearrange the second equation we can get:

s = 190 - a

Now we substitute this into the first equation:

4a + 3(190 - a) = 720

4a + (570 - 3a) = 720

4a + 570 - 3a = 720

4a - 3a = 720 - 570

a = 150

Find the equation of a line that is perpendicular to 4x+6y=1 and that has a greater intercept to the line 2x+3y=18

Answers

Answer:

2y - 3x = -15

Step-by-step explanation:

Slope of the line 4x + 6y = 1 is as shown below;

Rewrite in slope intercept form;

6y = -4x+1

y = -4x/6 + 1/6

y = -2x/3 + 1/6

mx = -2/3x

m = -2/3

The slope of the line perpendicular M = -1/(-2/3)

M = 3/2

Get the x and y intercept of 2x+3y = 18

x intercept occurs when y  = 0

2x + 0 = 18

x= 18/2

x = 9

y intercept occurs when x  = 0

0 + 3y = 18

3y= 18

y = 18/3

y = 6

The line passes through the point (9,6)

Write the equation in point slope form

y - y0 = m(x-x0)

y - 6  = 3/2(x-9)

2(y-6) = 3(x-9)

2y - 12 = 3x - 27

2y - 3x = -27 + 12

2y - 3x = -15

This gives the required equation

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Answers

Answer:

X=3

Step-by-step explanation:

Hope this helps and have a wonderful day!!!

In 1978, the amount of earnings required to earn one Social Security credit was $250. Thirty years later, in 2008, this amount was $1,150. What was the percent increase in the amount required to earn a credit, over this 30-year span? Use a percent sign .

Answers

Answer:

the percentage increase is 360%

Step-by-step explanation:

The computation of the increase in percentage is shown below;

Given that

SOcial security credit as on 1978 is $250

And, the social security tax as on 2008 is $1,150

Now based on the above information

The percentage increase is

= ($1,150 - $250) ÷ ($250)

=  360%

Hence, the percentage increase is 360%

Distribute and combine like terms: −4(7r + 7)

Answers

Answer:

r=1

Step-by-step explanation:

-4(7r+7)

-28r-28

r=1

Need help thanks
It’s Trigonometry and it’s hard.

Answers

Y should be 9 the same as the opposite side and the third side is the sum of the other two sides which should be 18 hope it helped so I’m sure ur answer is a I’m in 9th grade and working on something similar but that’s geometry not trigonometry

May someone please help me with this :)

Answers

Answer:

a) 80in peri, 320 in²

b) 19.426 peri, 26.139

if you roll two standard die what is the probability that they will both be a three?

Answers

Answer:

2/6 or 1/3 (simplified)

Step-by-step explanation:

each dice has 6 sides and there is one 3 on each die, so you would add 1/6 + 1/6 to get 2/6 which simplifies to 1/3

Answer:

2/12 or 1/6

Step-by-step explanation:

Find the range of the following numbers: 10 78 22 354 75 81 8 6 A 8 C 27 B 81 D 78​

Answers

Answer:

348

Step-by-step explanation:

6 8 10 22 75 78 81 354

subtract the highest number to the lowest number

Which equation below describes the angle measurements of a night isosceles
triangle?
А
90 + 2(45) = 180
B
180 = 90 + 40 + 50
c (180) = 60
D (90) + 90 = 180

Answers

answer : A - 90+2(45)=180

which is a proper number ?

A. 2/3
B. 3/2
C. 1 2/3
D. 3/3

Answers

Answer:

try a if not d

Step-by-step explanation:

Find the x and y intercept of y=0.5x^2-3x.

Answers

Step-by-step explanation:

i don't have a step by step explanation so here you go the answer

A biologist is comparing the growth of a population of flies per week to the number of flies a lizard will consume per week. She has devised an equation to solve for which day (x) the lizard would be able to eat the entire population. The equation is 7x = 3x + 4.

Explain to the biologist how she can solve this on a graph using a system of equations.

Answers

Answer:

(-1.307, 0.079), (1, 7)

Step-by-step explanation:

Given equation:

7ˣ = 3x + 4

To solve this, express each side of the equation as different function and find the intersection of graphs of those functions:

y = 7ˣy = 3x + 4

As per graph, the solution is:

(-1.307, 0.079), (1, 7)
7^x=3x+4

Break into two parts

y=3x+4y=7^x

Now graph and find the solution

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