Mathematics Middle School

Find the value of x.

Answers

Answer 1

Answer:

X=39

Step-by-step explanation:

add all the sides of the traingle

X+X+10+3X-5=180

collect like terms

X+X+3X-5+10=180

5x-15=180

5x=180+15

5x=195

divide both sides by 5

5x÷5=195÷5

X= 39

Related Questions

PLS HURRY The letter
represents the location of -1.5 on the number line.
A B C
D
-3
-2
-1 0
1
2 3

Answers

i’m pretty sure it B

Yea the answer is B on the number line

Represent each set of data in a dot plot. Determine the median, mode, and range.

Answers

Answer:

i can't remember these things

Solve the equations. Make conclusion.
3|x+12|=6

Answers

Answer: 3

Step-by-step explanation:because you have 12 and add 6 to it and 18/ 6= 3

Answer:

{-14, -10)

Step-by-step explanation:

Simplify this by dividing both sides by 3. The result is |x + 12| = 2. There are actually two correct results. If it happens that x + 12 is already positive, then x + 12 = 2 and x must be -10. If it happens that x + 12 is negative, then the equation becomes -(x + 12) = 2, or -x - 12 = 2, or x = -14.

The solutions are {-14, -10).

THIS IS THE LAST ONE THX

Answers

Letter D it’s incorrect, not sure tho

D is definitely the wrong answer

(Plz no links)
Help needed a lot!!!!

Answers

Their elevation changed -150ft. Per minute
Their change is negative

The answer is -150ft your well

someone help fast!!
please

Answers

d is the answer, hope this helps:)

You realize you are stuck in the Squaresville bank vault. You call your mother for help. She is at the dentist, which would be location (3, -5) on this map. She says she will be at the bank as soon as she stops at the pool to get the swimming suit you left there and then picks up your sister from school. You decide to send her the following text message so she doesn't get lost.

From the dentist, go to __ miles east to the pool.
Then, go __ miles north to the school.
Finnaly, go __ miles west to the bank.

Answers

Answer:

It depends on how far the school is from the bank, it could be 4, 5, 1 or 5, 5, 2 or 6, 5, 3 or 7, 5, 4.

Step-by-step explanation:

A map is useful for giving directions to a person who is unfamiliar with a location or a person that is lost.

What is a Map?

This refers to the graphical representation of landforms and other spatial forms in a certain geographical area.

We can see that a person that is stuck in a bank vault, does not know his way around without a map and he cannot get the coordinates to help him find his way out and go to the dentist.

Please note that your question is incomplete as there is no map so I gave you a general overview to help you understand the concept.

Answers

Here’s my work:
-3(x+4)<33
-3x-12<33
+12<+12
-3x<45
=x>15
The answer is x>15

It’s 33(c+4) I hope it helps

The snack bar at Spare Me Bowling Lanes sells hot crisps for $2 and popcorn for $3.50. Last Friday, they sold 10 more popcorns than hot crisps and made a total of $211. Which of these systems of equations can be used to find the number of hot crisps, h, and the number of popcorns. p, that were sold?

A 2h + 3.5p = 10 p = h + 211

B2h + 3.5p = 211 h - P = 10

C2h + 3.5p = 211 p = h + 10

D 2p + 3.5h = 211 p + n = 10

Answers

it’s for sure the answer is C

How would you represent a situation that has more than 1 solution? What does the solution represent about that situation? Explain how you know.

Answers

Answer: An inequality

Step-by-step explanation: The set of all solutions of an inequality is called the solution set. The symbol ≥/ means “is not greater than or equal to.”

How many class periods that are 3/4 of an hour-long will fit into 6 3/4 an hour school day? Assume that the class period includes time to pass between classes. helpppppp

Answers

Answer:

about 8 classes

Step-by-step explanation:

convert 6 3/4 to a fraction: 27/4

3/4 can go into 27/4 9 times, but with time in between, you should only be able to have 8 classes instead of 9

Answer:

about 8 classes

Step-by-step explanation:

convert 6 3/4 to a fraction: 27/4

3/4 can go into 27/4 9 times, but with time in between, you should only be able to have 8 classes instead of 9

ANSWER BOTH QUESTIONS FOR BRAINLIEST TY :)

Answers

Answer:

Angle X; 39Angle Y; 129

Step-by-step explanation:

180-90

This gives us the measurement of 51+x.

90-51

This is x as well as the angle that is across from it.

x+90=y

39+90=129

y=129.

to find the last angle, we add 90 to 51. This gives us 141.

So, now we add up all of the angles to double check everything. If they all add up to 360 then we are correct.

39+39+51+90+141=

360.

This means that we have solved everything correctly and that these are the correct answers.

I know that this is really confusing but the answers that you need are at the top so hopefully this helped!

Angle x: 39
Angle y: 129

39 + 90 = 129

Hai, please help! I'l give brainliest to the first correct answer

Answers

Answer:

1. False

2. True

3. False

Step-by-step explanation:

I believe it should be false, true, false

Find the circumference of a circle that has a radius of 36 inches

Answers

i think that the answer is 226.194 inches

Is figure A’B’C’D’ a translation of figure ABCD? Explain.

A. Yes; it is translated 2 units left and 2 units up.

B. Yes; it is translated 1 unit left and 3 units up.

C. Yes; it is translated 3 units left and 1 unit up

D. No; the two figures are oriented differently.

PLEASE HELPPP ASAP, WILL GIVE BRAINIEST!!!

Answers

D the figures are oriented different and if you attempted to move one on to the other they would not overlap

estimate the sum. I will give 5 points and brainiest.

Answers

Answer:

57.29333333

Step-by-step explanation:

add everything up

Answer:

59 or (22/75) i guess

Step-by-step explanation:

tell me if i got it right

also can i have brainilest

I need an explanation on how to do this and an answer, please.

Answers

Answer:

111°

Step-by-step explanation:

the angle is question is an alternate-interior angle with the one labeled as 111° and alt-int angles are congruent

When looking at both images you can see they are the same angle, so when it gives you 111degree you can take that and flip it, to see th top angle, or x is also 111

Angela earns a base salary of $842 each week and a 4% commission on products she sells. Her earnings last week were $879.60. What was the value of the products she sold?

Answers

Answer:

$937.50

0.04 x 937.50 = 37.50

Step-by-step explanation:

Percentage of 4% would only multiply $4 per 100, $40 per 1000

and as this is under 1000 we only have to multiply 1.4 x 37.50

then multiply that answer by 1.4 again and get 62.5 then subtract from a 1000 = 937.50

0.04 x 937.50 = 37.50

Sophie has a doll collection with 36 dolls. She decides to sell s dolls to a museum and has r dolls remaining.
What is the independent variable?

Answers

R dolls is the independent variable

The independent variable is R dolls because the amount of dolls you have controls how many dolls you can sell. If you sell all of your dolls you can no longer sell and you’ll no longer have dolls. This means R is x (Independent variable) and S is y (Independent variable.

R dolls would be independent because that number controls the amount of dolls that you can sell.

Pls help I SUCK at math

Answers

Answer:

1.) -21

2.) 46

3.) 2

4.) -4

5.) -10

6.) 10

Step-by-step explanation:

Please help!
Hopefully the attached image makes sense.

Answers

Answer:

The first one is false the second one is true and the last one is false

Step-by-step explanation:

I am in 7th grade

first one- false. second one- true. third one- false!! hope this helps :)

On a typical summer day, the owners of a local lemonade stand recorded the times that they sold lemonades during the day. The results are displayed in the histogram shown.

Answers

Answer:

Before 1pm

Step-by-step explanation:

The bar is at it's highest right before the 1pm bar, which isn't even the second highest bar, it's before the 12pm bar. So before 1 pm.

6x^2 - 18x - 240 = 0
solve for x.
Find solutions that are greatest to least.

Answers

6x^2 -18x -240=0 is a quadratic equation. Therefore you can use the quadratic formula to find ‘x’.

The greatest solution will be 8 and least solution will be -5.

A polynomial equation is given which is 6x² - 18x - 240 = 0

We have to find out the solutions that are greatest to least.

What do you mean by the quadratic equation ?

Quadratic equation is a polynomial equation whose highest degree is two . It is expressed in the form of ax² + bx + c = 0.

As per the question ;

Equation is ;

6x² - 18x - 240 = 0

Let's take 6 as common ;

6 ( x² - 3x - 40 ) = 0

x² - 3x - 40 = 0

This can be written as ;

x² - 8x + 5x - 40 = 0

x ( x - 8 ) + 5 ( x - 8 ) = 0

( x + 5 ) ( x - 8 ) = 0

x + 5 = 0

and

x - 8 = 0

So ;

x = - 5 and 8

Thus , the greatest solution will be 8 and least solution will be -5.

To learn more about polynomial factorization click here ;

https://brainly.com/question/26685427

#SPJ2

Help me please fhdgdyfcgfjhgfjhfxyfjdjfhdghfjfghjhgfjh

Answers

Answer:

94cm squared

Step-by-step explanation:

94 centimeters don’t forget to square your answer !

Two trains started moving at the same time, train A from Boston to New York, and train B from New York to Boston. The distance between the train stations in New York and Boston is 240 miles. The average speed of train A is 60 mph, which is 3 4 of the average speed of train B.how far from new york will the trains meet

Answers

Answer:

1.7

Step-by-step explanation:

The answer is 1.7 hope this helps

please help asap im being timed :sob:

Answers

12 2/5 of 30 students would be 12 hopefully this helps !!

Answer:

12 are playing chess and 10 are playing sudoku

Step-by-step explanation:

Which of the following best describes the relationship between the variables on the scatter plot below?

A. non-linear association

B. linear association

C. linear and non-linear association

D. no association

Answers

I think the answer is A nonLiner bc of the bend

Its is either a or d

Figure out length in inches for brainiest and 5 stars.

Answers

Answer:

Step-by-step explanation:

The answer is 180 inches if your asking to convert 15ft into inches

terry earned x dollars selling electronics last month. this month he earned $18 less than twice the amount he earned last month. write an expression to represent the amount he earned this month.

if terry earned $1700last month, how much did he earn this month?

Answers

Answer:

2x - 18

$3,382

Step-by-step explanation:

x = number of dollars gained last month

this month:

twice the amount = 2x

minus $18 = 2x - 18

x = 1,700

2x - 18

2(1700) - 18

3,400 - 18

$3,382

I think it is 2x-18

can someone help me with this please? i appreciate it!

Answers

Answer:

c and e

Step-by-step explanation:

1×5=5

2×5=10

other answers don't work

C and E!

porque 2*5=10 and 1*5=5

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