Mathematics Middle School

solve x

8 - 2x = -12

Answers

Answer 1

Answer:

x=10

Step-by-step explanation:

-12-8=-20

2x = -20

/2      /2

x = -10

Answer 2

Answer: x=10

Step-by-step explanation:

2 x 10=20, and 8-20= -12.

Related Questions


Joanna plans to completely cover a large soup can,
including the top and bottom, with black paper. The
diameter of the can is 6 in. and the height is 5 in. Which is a
reasonable estimate for the number of square inches of
paper that Joanna will need to cover the can?
Select one:
101 square inches
151 square inches
1.319 square inches
141 square inches
we

Answers

The answer would be 141 square inches
Reason is that to find the volume the formula would be pi*r^2*h.
Radius would be solved as 6/2=3 and height is 5 inches
Making the problem Pi*3^2*5
Plug that into a calculator which will give you 141 square inches

Hello!
Multiple Choice. Which of the following fractions is equivalent to (6/15)


2/7

4/10

1/2

1/4

Answers

Answer:

4/10

Step-by-step explanation:

Answer:

4/10

Step-by-step explanation:

Good Luck

Please answer the ones i have not!

Answers

Answer: 100 FOR THE 1ST ONE 41 FOR THE SECOND AND 678 FOR THE 3RD

Step-by-step explanation:

Can someone please help me with this?

Answers

It’s not letting me click on the picture to see the question

HELP PLEASE!!!!!!!

1) A rectangle has a length that is 5 less than four times its width. Find what simplified expression represents the perimeter of this rectangle. (Show work)

Answers

Answer:

10x-10

x-width

Step-by-step explanation:

width-x

4x-5-length

formula for P of rectangle- (a+b)2

(x+4x-5)2

(5x-5)2

=10x-10

PLEASE EXPLAIN WHAT MAKES THEM EQUAL

Answers

math is wh as t makes this equations true specifically pre algebra

Triangle ABC is isosceles, meaning that two of the sides are equal. In this equation we can say the parts that would like this— /\ — are equal. Therefore, we can say angle A is equal to angle C and angle B would be just about 20°.

need help with these

Answers

1. The answer for question 1 is 279936
1) -279936
2) -24a^10
3) -35a^5b^5c^5
4) 64

Depenendent Event
A box contains 6 yellow, 2 black and 4 green pencils. What is the probability of pulling two green
pencils (without replacement)? Write your answer as a decimal.

Answers

Answer:

.2

Step-by-step explanation:

first you add all the pencils up which is 12 next take the probably of taking out one of each pencil .4 for green .2 for black and .6 for yellow next you divide the probably for pulling 1 green bye 2 since your pulling out 2

2 like that guy said

The height of a building is proportional to the number of floors. The figure shows the height of a building with floors. Complete parts a and b. a. Write the ratio of height of the building to the number of floors.​ Then, find the unit​ rate, and explain what it means in this situation. Fill in the correct answers to complete the sentences. The ratio of height of the building to the number of floors is . The unit rate is . This means that each floor of the building is ft high.

Answers

Answer:

1:13

1 floor per 13 feet.

It means how many floors are to be allocated in a certain area of space.

Step-by-step explanation:

Answer:


Meaning: Each floor of the buiding has a height of 15 feet.
Step-by-step explanation:
The missing figure is attached.
By definition, the ratios are used to compare two or more things or quantities.
In this case you must write the ratio of height of the building to the number of floors it has.
You can observe in the figure that the building has a height of 135 feet, and, since it has 9 floors, you can write the following ratio:

Therefore, dividing the numerator by the denominator, you get that the unit rate is:

This means that each floor of the buiding has a height of 15 feet

I know it's wrong

Can 2 or more different triangles have the same area?

Answers

Answer:

yes

Step-by-step explanation:

ASAP PLZZZ HELP GIVING BRAINLEST TO THE FIRST CORRECT ANSWER
Why does the Moon appear to be the same size as the Sun during a solar eclipse?
Group of answer choices

Gravity pulls the moon closer to the Earth during a solar eclipse due to the planetary alignment so it ends up looking larger than normal.

While the moon is much smaller than the sun, the moon is also much closer to Earth so it appears larger.

The Moon Illusion occurs when the moon is in certain positions in the sky, which plays a trick on our brain to make it appear larger than it really is.

Answers

Answer:

While the moon is much smaller than the sun, the moon is also much closer to Earth so it appears larger.

Answer:

i think its the second choice

Step-by-step explanation:

An architect is creating a scale model of a building with a rectangular base. The ratio of the
building's base length to the scale model's base length is 110 in : 3 in. If the length of the base
of the scale model is 9 inches (in), what is the length of the base of the building to the nearest
foot?
Answer:

Answers

Answer: 28

Step-by-step explanation: 110in/ 3in = L/ 9in

Since we’re solving for L we see that L= 110in/ 3in x 9in = 330in.

Since there are 12 inches in 1 foot, you can determine the number of feet in the length of the building base by dividing the total number of inches by 12.

330/12 = 27.5 which rounds to 28 feet

The length of the base of the building is approximately 27.5 feet to the nearest foot.

To find the length of the base of the building, we can set up a proportion using the given ratio and the length of the base of the scale model.

Let's denote the length of the base of the building as 'x' feet.

The ratio of the building's base length to the scale model's base length is given as:

110 in : 3 in

To convert the scale model's base length to feet, we divide it by 12:

9 in ÷ 12 = 0.75 ft

Now we can set up the proportion:

110 in / 3 in = x ft / 0.75 ft

Cross-multiplying, we have:

110 in * 0.75 ft = 3 in * x ft

82.5 ft*in = 3x ft

To solve for x, we divide both sides by 3:

82.5 ft*in / 3 = x ft

27.5 ft = x ft

Therefore, the length of the base of the building is approximately 27.5 feet to the nearest foot.

To know more about length click here :

https://brainly.com/question/13251554

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Help Question! Due Today

Answers

5.B

what is 6

7. It’s equal, should be c

Sarah need 7 tickets, how much does it cost if 9 tickets cost 159 dollars

Answers

Answer:

I think it's $123

Step-by-step explanation:

good luck!!!and have a great day/night (different time zones)

The answer is 123.62 roughly. To find this, divide 159 by 9 to find the cost of the tickets. Then, multiply the cost of the tickets by 7 to get your answer.

Write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of the given equation.

(4, 2); x = -3

Answers

I got y = -3x + 14 as the answer

Answer:

He is right  y = -3x + 14

Step-by-step explanation:

Giving brainliest!!!!!!!!!!!

Answers

Answer:

the answer is A because "colorbiosticts" is middle and  that is the only option that says that

Step-by-step explanation:

here's an algebra question I need help with... (I'm not sure if I selected the right answer)

Answers

Answer: You selected the correct one

Step-by-step explanation:

I beleive this is right, qoute me on this!!!

You’re right on this one

Plzz help hurry!!!!!!

Answers

Answer:

(-1,-2.5)

Step-by-step explanation:

The radius is ___ cm.
O A.) 3
O B.) 7/4
O C.) 7/2
O D.) 7

The circumference in terms of π is ___ π cm.
O A.) 7
O B.) 7/4
O C.) 7/2
O D.) 14

Using 3.14 for π, the approximate circumference of the circle is ___ cm.
O A.) 7.0
O B.) 11.0
O C.) 22.0
O D.) 21.0

Answers

number one is b, number two is c, number three is a??

please i really need help

Answers

Answer/Step-by-step explanation::

8) 10.2(2) + 9.4(3)

20.4 + 28.2

48.6

9) 1/2(1/4) + 3/8

1/8+ 3/8

1/2

10) 6+2y

i hate math sm it ain’t even real

What is the estimate for each expression? Drag the number to each box.

Answers

Answer

1. 1/2

2. 1

3. 0

Answer:

1/8 + 2/5 = 1/2

13/14 - 1/10 =  1

1/12 + 1/20 = 0

-3z - (3z - 2) = 4(z + 3)
Can someone please tell me what to do step by step Pleaseee

Answers

Answer:

z = -1

Explanation:

-3z - (3z - 2) = 4(z + 3)

Expand -3z - (3z - 2): -6z + 2

Expand 4(z + 3): 4z + 12

-6z + 2 = 4z + 12

Subtract 2 from both sides

-6z + 2 - 2 = 4z + 12 - 2

Simplify

-6z = 4z + 10

Subtract 4z from both sides

-6z - 4z = 4z + 10 - 4z

Simplify

-10z = 10

Divide both sides by -10

-10z / -10 = 10 / -10

Simplify

z = -1

- zyxx

yes that's correct^

Plzzz help hurry zoom in to see!?!!

Answers

Answer:

point U

Step-by-step explanation:

Answer:

It's point U

Step-by-step explanation:

Bob bought five red hats and two blue hats for $17.50. Each hat had the same price. Which equation would be used to find the cost of one hat? *

Answers

5x+2y=17.50
x=blue hats y= red hats
5x+2y=17.50
X= red y=blue

DONT DO IT JUST FOR THE POINTS!!!! PLZ EXPLANE HOW TO DO IT WILL GIVE BRAINS

Answers

Answer:

So all the lengths of the sides have to be equal in an equalateral triangle.

Step-by-step explanation:

Each side is going to equal 15. I found this by adding all the numbers together and deviding them by 3 (the number of sides).

I can't help you much more than that, but I hope it helps. ◑﹏◐

Answer:

i dont get it

Step-by-step explanation:

BRAINLIEST INCLUDED!!!! Elena went to a sporting goods store that was having a sale. She bought a tennis racket and 3 cans of tennis balls. The tennis racket normally costs $43. All tennis rackets are marked down 15%. One can of tennis balls normally costs $4. The tennis balls are not marked down. The sales tax rate is 8.5% How much will she pay for everything, including tax?

Answers

Answer:

She will pay $52.68, including taxes

Step-by-step explanation:

One can of tennis ball is $4 and there are no discount on it. Elena bought 3 cans, so:

can = 3 x 4 = 12

One tennis racket is $43 but it has a discount of 15%:

discount = 0.15 x 43 = 6.45

total racket = 43 - 6.45 = 36.55

Elena will have to pay:

pay = 12 + 36.55 = 48.55

She will also have to pay taxes, which are 8.5% over the price she paid:

pay + tax = 48.55 x 0.085 = 4.13

total to pay = 48.55 + 4.13 = 52.68

Buying 3 can of tennins ball and one racket, Elena paid $52.68, including taxes.

What is the other dimension of the rectangular cross section that is perpendicular to the base (the face that is shaded) and passes through the midpoints of the 10 cm edges?

________ centimeters by 18 centimeters

A rectangular prism with length of 10 centimeters, width of 8 centimeters, and height of 18 centimeters.
2
8
10
18

Answers

I think the answer is ten centimeters because not only is it in the question but it also makes the equation make sense.

___10_____ centimeters by 18 centimeters

What is a Rectangle?

A parallelogram all of whose angles are right angles especially : one with adjacent sides of unequal length.

How to determine?

We have,

A rectangular prism with length of 10 centimeters, width of 8 centimeters, and height of 18 centimeters.

The other dimension of the rectangular cross section that is perpendicular to the base (the face that is shaded) and passes through the midpoints of the 10 cm edges are ___10_____ centimeters by 18 centimeters.

Learn more about Rectangles:

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What steps would you follow to graph the inequality statement? -4 ≥ -w

place an open circle on -4 and shade to the left
place a closed circle on -4 and shade to the right
place an open circle on 4 and shade to the left
place a closed circle on 4 and shade to the right

Answers

Answer:

Place a closed circle and shade to the right

the royals softball team played 75 games and won 55 of them. what percent of the games did they lose?

Answers

Answer:

they lost 29.3% of the games

Step-by-step explanation:

They lost 29.3%of the softball games.

Explanation:

Total number of games = 75

Number of games won = 55

Number of games lost = 75 − 55 = 22

22/75 ÷ 100% = 29.3%

Help Me please this is due soon

Answers

Answer:

D

Step-by-step explanation:

dark chocolate takes longer to melt than white chocolate.

the consistency might be the same.. this is one I think.

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