Mathematics Middle School

−2x − 10 = 15 I'm really un smart

Answers

Answer 1

Answer:

x = -12.5

Step-by-step explanation:

your goal is to get x alone so

-2x - 10 = 15

(add ten to both sides)

-2x = 25

(divide -2 to both sides)

x = -12.5

remember that whatever u do to one side of the equation, you have to do to the other so they even out!

Related Questions

X=

Pls help me quick..........
10pts

Answers

Answer:

x=3

Step-by-step explanation:

I think it x=3 but check to make sure

PLEASE HELP!!!!! SEMESTER TEST PART 2 K12 PLEASE ANSWER ALL THE QUESTIONS GETS BRAINLIEST

Answers

Answ

Step-by-step explanation:

step answer-
Characteristics is greecex

A group of seventh graders and a group of teachers at a local middle school were asked how many siblings they each have. The dot plots below show the results. Students A dot plot titled Students. A number line going from 0 to 9 labeled number of siblings. There are 2 dots above 0, 4 above 1, 7 above 2, 5 above 3, 2 above 4, and 0 above 5, 6, 7, 8, and 9. Teachers A dot plot titled Teachers. A number line going from 0 to 9 labeled Number of siblings. There is 1 dot above 0, 3 dots above 1, 2 above 2, 4 above 3, 5 above 4, 3 above 5, 1 above 6, 0 above 7, 1 above 8, and 0 above 9. When comparing the shape of the two sets of data, what conclusion can someone draw? The students tend to have fewer siblings than the teachers. The teachers tend to have fewer siblings than the students. Both the students and the teachers have a wide range of siblings. Both sets of data have the same shape. the answer is- a. The students tend to have fewer siblings than the teachers.

Answers

Answer:

A. The students tend to have fewer siblings than the teachers.

Step-by-step explanation:

First we need to draw the dot plots correctly. If you count both sides they have 20 each.

Now, clearly none have fewer nobody here yet has more or less but going on to the next step.

Multiply exactly the number of siblings times how many people chose that many siblings. Ex: 2 (siblings) times 7 (people who has 2 siblings) = 14. And so on.

On the Student A, we get a total of 41 people having sibling, if you count the 0's then there were a total of 43 people. But now on the Teacher's A Dot Plot, we have a total of 68 people, if you include the 0 then we have a total of 69.

So the answer is A. The students tend to have fewer siblings than the teachers.

Answer:

The sum is A

Step-by-step explanation:

Just ma duty to help the community

help me plz! I need this as soon as possible!

Answers

Answer:

It's the first one

Step-by-step explanation:

The points on the graph go up as the car goes faster and then stay the same because the car speed is the same and then goes down as the car goes slower

The speed of the car increases and remains constant before it declines.

Identify the DOMAIN for the ordered pairs

Answers

(-∞, -3) u (-3,-1) u (-1,1) u (1, ∞)

A=1 b=1.5c=-1.5d=1 hope that helps

Mikey's family is taking a road trip. Their car can travel no more than 260 miles without needing to refill the gas tank. They have traveled 112 miles since they last filled the gas tank.

Mikey knows that the inequality representing this situation is 112 + x ≤ 260.

Select from the drop-down menu to correctly interpret the solution of this inequality.

Mikey's family can drive_____more miles before they need to refill the gas tank.

A. at most 148
B. at least 148
C. more than 372
D. more than 372

Answers

Answer:

Step by step:

you subtract 112 from 260 to isolate the variable. Then you get x is less than or equal to 148. Which means that the most miles that can be traveled is 148 miles before filling up.

Mikey's family can drive at most 148 more miles before they need to refill the gas tank. which is the correct answer would be option (A).

What is inequality?

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

As per the given situation, the required inequality would be as

⇒ 112 + x ≤ 260

To isolate the variable, remove 112 from 260. The result is that x is less than or equal to 148.

⇒ 112 + x - 112 ≤ 260 - 112

⇒ x ≤ 148

This indicates that the maximum distance that may be traveled before filling up is 148 miles.

Therefore, his family can drive at most 148 more miles before they need to refill the gas tank.

Learn more about inequalities here:

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send help and show work tysm

Answers

Answer:

option 1

Step-by-step explanation:

5 email is 5 to the first power then the 5 people forwarded the 5 emails to 5 more people and that is 5 to the second power

Opt 1 I think but not sure

Please help answer this like really

Answers

the problem is you can’t simplify 3/7

More Math about Slope

thx

(for questions 3 and 4, i know that one of them is 0 and the other is unidentified, but i don't know which one is which)

(and the 5th screenshot has the answer choices if needed)

happy easter-eve

Answers

Answer: 3 is 0 and 4 is unidentified

Step-by-step explanation:

The horizontal line has a slope of zero, think of it as you can walk on it or not. Since four has all X's as eight that creates a vertical slope which cannot be walked on.

Thanks for the opportunity to help you! :)

1. m/slope=6/1 or 6. Use the first two points for the formula y₂-y₁/x₂-x₁. B

2.m=-4 or -12/3. Use the slope formula and substitute the points. G

3. m=zero. I

4.m=undefined. A

What is the angle made by the hour hand and the minute of the clock at 8:57

Answers

Answer:

85 degrees

Step-by-step explanation:

The answer to that is 87,5 degrees

Earn points, answer both questions!

Answers

Answer:

Area of five squares = 1289.09 square units

Perimeter = 194.6 units

Step-by-step explanation:

Area of square and perimeter:

First find the length of each square, then find the area of each square.

To find the area of five squares, add all the area of each square.

Side of square1 = 27 units

\(\sf Side \ of \ square2 = \dfrac{2}{3}*27=2*9 = 18 \ units\\\\Side \ of\ square3= \dfrac{2}{3}*18=2*6=12 \ units\\\\Side \ of \ square4=\dfrac{2}{3}*12=2*4=8 \ units\\\\Side \ of \ square5=\dfrac{2}{3}*8=\dfrac{16}{3}=5.3 \ units\)

Area of square1 = 27*27 = 729 square units

Area of square2 = 18*18 = 324 square units

Area of square3 = 12*12 = 144 square units

Area of square4 = 8*8 = 64 square units

Area of square5 = 5.3*5.3 = 28.09 square units

Area of five squares = 729 + 324 + 144 + 64 +28.09

= 1289.09 square units

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Perimeter of the composite figure = (27 + 27+27+9) + (18+18+6) +(12+12+4) + (8+8+2.7)+ (5.3+5.3+5.3)

= 90 + 42 + 28 + 18.7 + 15.9

= 194.6 units

the area of the five squares is 1289.09 square units

the perimeter is 194.6 units

Reena has a square office with an area of 126 square feet. Jazmine has a square office with an area that is 50% greater than the area of Reena’s office. To the nearest tenth, how much greater is the side length of Jazmine’s office than the side length of Reena’s office?

Answers

Answer:

To find the side length of Jazmine's office, we need to first determine the area of her office. We know that her office has an area that is 50% greater than Reena's office, which means the area of Jazmine's office can be calculated as follows:

Area of Jazmine's office = (1 + 0.5) * Area of Reena's office Area of Jazmine's office = 1.5 * 126 square feet Area of Jazmine's office = 189 square feet

Since Jazmine's office is also square, we can find the side length by taking the square root of the area:

Side length of Jazmine's office = sqrt(189) feet Side length of Jazmine's office ≈ 13.7 feet

To find how much greater the side length of Jazmine's office is than the side length of Reena's office, we simply subtract the side length of Reena's office (which is also the square root of her office's area) from the side length of Jazmine's office:

Side length difference = Side length of Jazmine's office - Side length of Reena's office Side length difference = sqrt(189) feet - sqrt(126) feet Side length difference ≈ 1.8 feet

Therefore, to the nearest tenth, the side length of Jazmine's office is 1.8 feet greater than the side length of Reena's office.

Step-by-step explanation:

Answer:

1.8 feet greater than the side length of Reena's office

Step-by-step explanation:

Two data sets and their mean absolute deviations are shown.

Study the plots of each data set, and then use the drop-down menus to answer the questions below.

Answers

Answer:

Step-by-step explanation:

Use internet to read a graph

SHOW 2 DIFFERENT WAYS TO FACTOR

\(-\frac{11}{2}x\) + \(\frac{1}{2} - \frac{7}{2} y\)

BTW!! \(-\frac{11}{2}x\) is NEGATIVE

Answers

Answer:

the fraction is 3(x + 4)

Step-by-step explanation:

Select all segments that could represent a corresponding height if the side m is the base

Answers

Where’s the image ooooooooook

What are the segments

what is the step-by-step answer to
(X/3 - 2)+(X/2 + 6)=3

Answers

(X/3 - 2) + (X/2 + 6) = 3

X/3 - 2 + X/2 + 6 =3

5X/6 + 4 = 3

5X/6 = 3 - 4

5X/6 = - 1

5X = - 1 times 6

5X = - 6

X = - 6/5

And in decimal form: - 1.2

Answer:

x=−6/5

Step-by-step explanation:

\(\frac{x}{3} - 2 + \frac{x}{2} + 6 = 3\\\)

Simplify both sides of the equation:

\(\frac{x}{3} - 2 + \frac{x}{2} + 6 = 3\)

\(\frac{1}{3} x + -2 + \frac{1}{2} x + 6 = 3\)

\(( 1/3x + 1/2x ) + ( −2+6 ) = 3\) (Combine Like Terms)

\(5/6 x + 4 = 3\)

Subtract 4 from both sides:

\(5/6x + 4−4= 3−4\)

\(5/6x = −1\)

Multiply both sides by 6/5:

\((6/5) * (5/6x) = (6/5) * (−1)\)

\(x=−6/5\)

The variables x and y have a proportional relationship, and y=1/3 when x=3/4. Which equation represents this relationship? y=4/9x y=1/4x y=2/14x y=5/12x

Answers

Answer:

y = 4/9x

Step-by-step explanation:

1/3 ÷ 3/4 = 1/3 * 4/3 = 4/9

y = (4 / 9)x equation represents the relation as per the condition given.

What are variables?

" Variables are the quantities which can changed as per the condition applied on it."

Formula used

y ∝ x

⇒y = k x

x, y are variables

k is the constant of proportionality

According to the question,

Given,

y = (1 / 3)

x =(3 / 4)

Substitute the value of the variables in the formula we get,

y = k x _____(1)

( 1 / 3) = k ( 3 / 4)

⇒k = ( 1 / 3) × ( 4 / 3)

= 4 / 9

Again substitute the value of k in equation we get,

y = ( 4 / 9) x

Hence, y = (4 / 9)x equation represents the relation as per the condition given.

Learn more about variables here

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ASAP! Find the area of the triangle

Answers

Answer:

Step-by-step explanation:

Count blocks if half make 2 halves 1

6 x 2 is 12 to find the area of something you have to multiply answer 12

PLS HELP ASAP!! WILL GIVE BRAINLIEST

Answers

yes is the answer
Why: Because it shows it.
Sorry I don’t know it

100cm3 because i did the math

Mt Everest is 8,848 meters tall How many kilometers tall is Mt Everest

Answers

Answer:

8.848

Step-by-step explanation:

i know this bc i am big brain

Answer:

8.848

Step-by-step explanation:

Answer with a proper explanation

Answers

There are 1080 degrees in an octagon. So each angle is 135 degrees because 1080/8=135.
So with that, you now know the measurement of angle PQR and RST (135).

Now you need to find the angle SRT. To do this look at triangle RST. We know the angle S is 135 and angles R and T are equal to each other. So 180-135=45. So the angle of R and T are 22.5*.

So 135-22.5-22.5= 90*

Your answer would be 90 degrees.

Answer:

90°

Step-by-step explanation:

1) There are 1080° in an octagon and there are eight sides, meaning that we have to divide. The equation would be: 1080÷8= 135. So each angle on the edge of the octagon is equal to 135°. An example for better understanding would be that angles like RST, TUV, VWP and PQR are each 135° Now we know that the measurements of the angles PQR and RST (They are the main angles we look at in this question)

2) We now have to find the angle SRT. Meaning that we now have to look at the triangle RST. We already know that the angle S is equal to 135° and the angles R and T are equal to each other. (You can even see with the RT line/angle connecting R and T) So now we have to complete the equation: 180-135= 45. (We have to subtract 135 from 180 because the angles we are supposed to be calculating are not reflex angles nor they exceed 180°) This means the angles R and T (because they equal the same) equal 22.5°

3) Now we have to just subtract everything. The equation would be: 135-22.5-22.5= 90° The answer would be 90° because we have to subtract the angle R and T (which are both 22.5°) from angle S (which is 135°) which would equal our answer 90°.

Which list orders the numbers from least to greatest?

Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth

A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3

Answers

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth

Hope my answer helps you✌️

Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5 is the list that orders the numbers from least to greatest.

the ratio of males to females at a camp is 5 to 4. If there are 40 males at the camp, how many females are there?

Answers

Answer:

5 males : 4 females

40 males : X females

5/40 =4/X

(cross multiplication)

5x = 4*40

5x = 160

(divide both sides by 5)

X = 32

therefore, there are 32 females at the camp

5 Males for every 4 female. 40/5 = 8. 4 x 8 = 32. 32 Females

ANSWER QUICK PLSSSSSSSS

Answers

Answer:

Step-by-step explanation:

3 ) ∠ BZD = 58° + 90° = 148°

4 ) 2x + 58° + 90° = 180°

2x = 180° - 148°

2x = 32°

x = 16°

pls help 9th garde math

Answers

Answer:

1. (g,h)=(-3, -2) 2. (x,y) = (2, 3) 3. (x,y) = (-2, -1)

Step-by-step explanation:

Answer: g=24, h=24

Step-by-step explanation: You solve this problem as simultaneous equation.

write a rule that tell how to use mental math to find the product 30,000 x 50,000

Answers

Answer:

here is an example

Step-by-step explanation:

Step 1. Think of the basic fact. Multiply. 6 2 12

Step 2- Count the number of zeros in the factors.

60 has 1 zero and

20 has 1 zero.

Step 3- Write that number of zeros to the right of The answer is 1,200.

the basic-fact product.

first, put down all the zeros, then multiply 5x3. put that answer in front of the zeros; 1,500,000,000

ASAP thank you.........

Answers

Answer:

The first one

To make a number pattern, Shana used the rule "Add 3," with a whole number as the starting number. Which statement must be true about Shana's list of numbers?

Answers

Answer:

you didnt put enough context in your question but if shana kept using three she would have mixed even and odds in her numbers if you could give more context to the question id be glad to help more

The statement that is true is that the pattern will consist of even and odd numbers no matter what whole number you begin with

Find the length of the third side. If necessary, round to the nearest tenth.

Answers

The answer is 27.01 because 17^2 =289 and 21^2 =441 and then you add both of them 289+441=730 then you would square root and the answer is 27.01

Joanna draws a scale model of a rectangular table for a carpenter to build.
On her drawing, 3/4 of an inch represents 1 foot. In the drawing, the table is 7 1/2 inches long. How long, in feet, will the table be when the carpenter builds it?

A. 4 2/3 ft
B. 2 5/8 ft
C. 5 5/8 ft
D. 10 ft

Answers

Answer:

Step-by-step explanation:

just multiply the three over four inches with seven and a half to get the accurate measurements

the answer to this is D

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