Mathematics Middle School

Use substitution to determine which value of x makes the equation 2x=6.2 true.
x = 3.1

x = 4.2

x = 6

x = 12.4

Answers

Answer 1

Answer:

the right answer is x = 3.1

Step-by-step explanation:

if you divide 6.2 by 2 you'll get 3.1 thus by dividing you'll get your answer

Answer 2
The answer is 3.1, because if it is asking what you would have if you had the answer to x, you already have the multiple so divide the product by the multiple and you have the answer

Related Questions

Which proportion can be used to find 180% of 45?

Answers

Answer:

well 1st take the hundred percent out because u already know that 100% of 45 is 45 so now just find 80% of 45 which is 36 so add 45 + 36= 81 so 180% of 45 is 81

Step-by-step explanation:

Answer:

81 is the number, the proportion given below

Step-by-step explanation:

45 ⇒ 100%x ⇒ 180%

Use proportion below:

x / 45 = 180 / 100x = 45*180 / 100x = 81

What is the value of the expression when c=0 and d=-6 ?
cd-d2/4

Answers

Answer:

-9

Step-by-step explanation:

This what you wrote:

[tex] cd - \dfrac{d^2}{4} = [/tex]

[tex] = (0)(-6) - \dfrac{(-6)^2}{4} [/tex]

[tex] = 0 - \dfrac{36}{4} [/tex]

[tex] = -\dfrac{36}{4} [/tex]

[tex] = -9 [/tex]

Maybe this is what you meant to write:

[tex] \dfrac{cd - d^2}{4} = [/tex]

[tex] = \dfrac{(0)(-6) - (-6)^2}{4} [/tex]

[tex] = \dfrac{-36}{4} [/tex]

[tex] = -9 [/tex]

-9/5-5/6-7-7/7/7/7/8/8/

Ill give brainiest to, whom ever gets this correct.

Answers

Answer:

C. area = radius/2 × circumference.

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Area can not = circumference without dividing it so 4 is wrong

ill give you braindeath if you get this right

Answers

Answer:

The larger angle is 144 degrees and the smaller angle is 36 degrees

Step-by-step explanation:

Because this is a  supplementary angle you have to find out what x is to solve  this equation [tex]2.4x+9.6x=180[/tex]

Because 2.4x and 9.6x are like terms we add them [tex]2.4x+9.6x=12x[/tex]

So now to find x we divide 180 by 12 to get 15  [tex]\frac{12x}{12} =\frac{180}{12}[/tex]

We replace the x with 15 [tex]2.4(15)+9.6(15)=36+144[/tex]

We add 36 and 144 which equals 180

person above is very much correct have a great day

where is the y-intercept on a graph

Answers

Answer:

The y-intercept is where the graph intersects with (goes through) the y-axis.

Step-by-step explanation:

The point where the graph passes through the y-axis (vertical axis) is known as the y-intercept.

Answer:

The y intercept on a graph is the y-axis.

Step-by-step explanation:

Jessica purchased a book that was on sale for 12%. The sales tax is 3% key y represent original price of the book write an expression that can be used to determine the final cost of the book.


How do I do this, I don’t need a answer just how to do I it lol

Answers

Answer:

if it's 12% then: she's actually paid 88% with a tax of 3%.

Step-by-step explanation:

I did it

You answer is 36% because you need to multiply your two number

Sophie read a total of 4 books in 2 months. Then, she read 10 books in 5 months. What is the constant of proportionality?

Answers

Answer:

The COP is 2.

Step-by-step explanation:

Do 4 divided 2 which is 2 and then do 10 divided by 5 to also get 2.

The constant of proportionality is 2.
This is because 4 divided 2 is 2 and 10 divided by 5 is also 2

Find each product. Enter your final answer as a simplified fraction. (− 23 ) (− 38 ) ( 89 ) The product is

Answers

unfortunately I cant manage to understand ur question

Simplify 753.06 ÷ 2.2
A. 34.23

B. 3.423

C. 0.0029

D. 342.3

Answers

Answer:

D

Step-by-step explanation:

D. 342.3

I just did this question

ok so....
the numbers to the code are 0 3 3 8 8
the number is less than 50
the value of the hundredths digit is 10 times the value of the thousandths digit
the value of the ones digit is one-tenth the value of the tens digit

Answers

Answer:

300????

Step-by-step explanation:

because you multiply 100 to the number of tens is equal 300 i think

Answer- 300
Multiply 100 to the number of 10s

Help please giving brainlyest

Answers

Answer:

fewer than 14.05

Step-by-step explanation:

basically all I did was subtract the 88.6 by 2 until I got to 60.5 the answer is 13 minutes so fewer than 14 minutes.

Answer:

fewer than 14.05

Step-by-step explanation:

A triangle with an area of 10 square meters has a base of 4 meters. A similar triangle has an area of 90 square meters. What is the height of the larger triangle? Please show the steps

Answers

Answer:

45

Step-by-step explanation:

The area of a triangle is height x width /2, so the answer is 45

The answer would probaly be 45

An elevator ascends at a rate of 29.6 feet per second. If a building is 1,450 feet tall,
about how long would it take for the elevator to travel from the ground floor to the roof?
A. 0.49 minute
B. 0.82 minute
C. 4.9 minutes
D. 8.2 minutes

Answers

The correct answe would be D I think it is
The answer is D 8.2 minutes

Solve.

−5.6x=−4

What is the solution to the equation?

Enter your answer as a simplified fraction in the box.

Answers

Answer: 0.714285

Step-by-step explanation:

The solution of the equation (-5.6 = -4) is (x = 5/7) and this can be determined by using the arithmetic operations.

Given :

-5.6x = -4

The following steps can be used in order to determine the solution to the equation (-5.6x = -4):

Step 1 - The arithmetic operations can be used in order to determine the solution to the given equation.

Step 2 - Write the given equation.

-5.6x = -4

Step 3 - Add 4 on both sides in the above equation.

-5.6x + 4 = -4 + 4

-5.6x + 4 = 0

Step 4 - Add 5.6x on both sides in the above expression.

-5.6x + 4 + 5.6x = 5.6x

4 = 5.6x

Step 5 - Divide 4 by 5.6 in the above expression.

[tex]x = \dfrac{4}{5.6}[/tex]

Step 6 - Simplify the above expression.

[tex]x = \dfrac{5}{7}[/tex]

For more information, refer to the link given below:

https://brainly.com/question/2096984

..........................................................

Answers

Answer:

6/10

Step-by-step explanation:

60% of 100 is equal to 6/10

A beach diver descends 110 feet in 10 minutes at a constant rate. Find the rate of the beach diver’s change in position per minute?

Answers

Answer:

11

Step-by-step explanation:

We are dividing.

110 / 10 = 11

the answer is 11 bc were dividing.

Hellppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Answers

Answer: y = 4 and x = 1

Step-by-step explanation:

when y is 2, x is 0.5

when y is 4, x is 1

                .(+ 2)   .(+ 0.5)

                .(+ 2)   .(+ 0.5)

                .(+ 2)   .(+ 0.5)

                .(+ 2)   .(+ 0.5)

the rule is that y is 4 times larger than x

the answer should be 4/1

i need some help again

Answers

A = small box of oranges

B = large box of oranges

3A + 14B = 203

11A + 11B = 220

Take the second equation and divide it by 11 as both A and B have the same coefficient, which will equal:

[tex]\frac{11A+11B}{11}[/tex] = A + B

220 will also have to be divided by 11, giving you 20

A + B = 20

You can cancel out 3A in the first equation by subtracting 3A + 3B = 60 from it.

11B = 143

143/11 = 13

B (large box of oranges) costs $13.

Substitute 13 for B back into one of our equations, in this case 3A + 3B = 60

3A + 3*13 = 60

3A + 39 = 60

3A = 21

A = 7

Thus:

A small box of oranges costs $7, and a large box of oranges costs $13.

Hope this helped! (please brainliest)

2,854 divided by 7= more answers finna be posted

Answers

Answer:

407.714285714

Step-by-step explanation:

BRAINLIEST?

Answer: 407.7142

Step-by-step explanation:

Just use a calculator

Graded Assignment Unit Test, Part 2:

Unit 5 Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit.

Be sure to include your work and WRITTEN Explanation

Juan wants to buy a video game for $63. He saves $12 every Friday.

How many Fridays will it take for Juan to save up enough money for the video game?

Answer: Show your work and explain!

Answers

Answer:

Step-by-step explanation:

if you divide the 63 by the 12 it would be 5.25 so it would take 6 fridays to save up!

Juan needs $63. He gets 12 every Friday.

1) divide 63 by 12 = 5.25

Answer :6

Use the right triangular prism shown to answer the following questions.



What is the volume of the right triangular prism?

A. 144cm3
B. 168cm2
C. 168cm
D. 168

Answers

Answer:

168cm is the right answer

Step-by-step explanation:

C.168 is your answer

The design plans for a new concert hall show elevations relative to ground level at 0 feet. The elevation of the balcony floor is 37 feet, and the elevation of the basement floor is –17 feet.

Which TWO statements about the distances of the balcony and basement from ground level are true?
Select TWO that apply.

A
The basement floor is 17 feet above ground level.
B
The balcony floor is 37 feet above ground level.
C
The balcony floor is 37 feet below ground level.
D
The basement floor is 17 feet below ground level.

Answers

Answer: B and D

Step-by-step explanation:

-17 means below, so the basement floor is 17 below ground level, and no symbol means positive, meaning above, so the balcony is 37 feet above ground level.

B,D because negative (-) means below so it means the basement is 17 below and the balcony did 37 feet above

moreeeeee hellllllpppppppppplz:D

Answers

Answer:

I think it is by multiplying by 2.

Step-by-step explanation:

Even if it depends on the x, the constant of proportionality just goes by the multiple of 2 as you can see on the graph.

For example, the point that's on ( 2, y) on the graph is the start of it's proportional relationship that is on the line. Here is an example of how it is proportional:

hope it helps in a way:)

Answer:

X and Y have the same constant of proportionality. When X is 4 then Y is  4 as you can see on your picture you attached.

Easy 100 points if you do all five questions.
plz help

Answers

Answer:

What are the five questions

Step-by-step explanation:

Answer: Where are the questions??? Please write them in the reply so I can answer them.

The equality [tex]\sqrt{x^{2}} =-x[/tex] is true for ______________

format the answer should be in:
[tex]x\ \textless \ -3; x\ \textless \ 3\ \textless \ 7; x; x\ \textgreater \ 7[/tex]

Answers

Answer:

X < -3

Step-by-step explanation:

-x will be positive when x < -3

I don't understand why m

Answers

please explain what question you are talking about since there is 6 questions on the paper.

Answer:

M

Step-by-step explanation:

When is says m< It is really said “m” angle___ it has nothing to do with math really

Can like someone help me with O.o.O (order of operations)

Show your work please...thats why I provided a ton of space.

Answers

Answer:

183

Step-by-step explanation:

168+2^3+3^3-20=

Exponents

168+8+27-20

Addition

203-20

Subtraction

183

183 is the answer.

Answer:

10

Step-by-step explanation:

Using the process PEMDAS I got the answer 10.

168÷2^3+3^3-20

There are no parentheses so you solve the exponents first.

168÷8+9-20

Next, we do not multiply which makes division our second step.

This gives us 21+9-20.

Now we add 21+9 which gives us the sum of 30.

30-20 is equal to 10.

This is how I got my answer and I really hope this helps you

Use this information to answer Parts A, B, C, and D.

Regina is buying a new car. She sees two advertisements in the paper for the same car at two different prices from two different dealerships. Both dealers are offering a simple-interest loan for the price of the car.

A photo of car includes two ads. Ad A shows the vehicle priced at twenty-four thousand two hundred dollars at six point five percent interest and an unknown number of years. Ad B shows an unknown price, at a five point three percent interest over nine years.

Part A

Regina calculates that to buy the car in Ad A, the loan would ultimately cost her $41,503. Over how many years is the loan in Ad A to be paid back?

Part B
Regina calculates that to buy the car in Ad B, the loan would ultimately cost her $38,402. What is the price of the car offered in Ad B?

Part C
In either case, Regina would be paying back the dealer in equal monthly installments over the lifetime of the loan. What would her monthly payments be if she bought the car shown in Ad A? What about if she bought the car shown in Ad B?

Part D (Its a multi-pick question, so you don't need to answer)

Answers

It’s is B I know this because I have a brain that is smart ok. Ok by by

Paul's rule is "square, triangle, circle." How can Paul find the seventeenth shape?

Tell me if you need anything to answer my question :)

Answers

Answer:

1. keep counting

2. He can do 5 times 3 to get to the 15th shape and then say 2 more to get the 17th shape.

(The 17th shape would be triangle)

what is 9038 x 8389
if u answer ill give u a crown thing

Answers

Answer:

75,819,782

Step-by-step explanation:

Answer:

75,819,782

Step-by-step explanation:

that's the answer

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