i need help with these

Answers

Answer 1

Let x be the number.
"twelve decreased by twice a number" ---> 12 - 2x
"8 times the sum of number and 4" ---> 8(x + 4)
12 - 2x = 8(x + 4)
12 - 2x = 8x + 32 (distributive property)
12 = 10x + 32 (add 2x to both sides)
-20 = 10x (subtract 32 from both sides)
x = -2 (divide both sides by 10)

Answer 2

Answer:

twelve decreased by twice a number > 12 - 2x

8 times the sum of number and 4 > 8 (x + 4)

12 - 2x = 8 (x + 4) then 12 - 2x = 8x + 32 (distributive property)

12 = 10x + 32 (add 2x to both sides)

-20 = 10x (subtract 32 from both sides)

x = -2 (divide both sides by 10)

Related Questions

Peggy has $30 to spend on one book at the bookstore. She has a coupon for 15% off the price of one book. She will be charged 7% tax. What is the price (before she uses the coupon) of the most expensive book that Peggy could buy?

Answers

The answer would be $$ 10.56

The answer would be $10.56

Which of the following is not a rate? pls help bruuh
i dont pay attention in these classes

Answers

Answer:

B , 16oz/1lb

Step-by-step explanation:

Those are for weighing measurements. They don't show time or the rate.

Hope this helps.

please help will give brain

Answers

Answer:

Step-by-step explanation:

1,1 = 6,4 = 36,16 etc.

x always goes first, then y

Simplify 4a – 7b + 2ab – a + b.
Group of answer choices

15ab

4a – 7b + 2ab

3a – 6b + 2ab

-ab

Answers

Answer:

3a - 6b + 2ab

Step-by-step explanation:

We can group the a's and b's like this:

4a - 7b + 2ab - a + b

4a - a - 7b + b + 2ab

3a - 6b + 2ab

Answer:

- ab and 15ab

Step-by-step explanation:

can someone help me with these math problems

Answers

Answer:

1) equation: 3n-2=n+10. solution: n=6

2) equation: 8n-20=n+15

Live image and video. tell me is you can see the image or not.

Answers

Answer:

I can see the image a little.

Step-by-step explanation:

145.23

one hundred forty-five and twenty-three hundredths

23.457

twenty three and four-hundred and fifty seven thousandths

I cant see this one... Tell me in the comments and I'll give you the answer

Five tenths

Fractions

2.35

47/20

.625

5/8

5.75

23/4

2.72

68/25

I cant see this one either... Again, put it in the comments and I'll tell you the answer

025

What is the volume of the rectangular prism?

length=8 in. width= 8 in. height= 4 in.

64 in3
128 in3
256 in3
512 in3

Answers

Answer:

512 in3.

Step-by-step explanation:

hope it helps for u

I think it’s 256 but I’m not 100% sure

Will award Brainliest

Answers

-5 because there it can’t be positive and you can reduce the equation

it is -5.

solution:

remove parenthesis, so 12k + 3 x k + 11 = 8k - 7.

combine like terms, so 15k + 33 = 8x - 7

move the terms, so 15k - 8k + 33 = -7

combine like terms again. 7x = 7 - 33

lastly, divide by both 7 to both sides. which is 7x = -40, and that gives -5.

hope this helps, please mark me branliest.

How do you find the rate of change for tables? For example (see photo above)

Answers

Divide change in the output value by the change in the input value for example in this question the rate on the y=+5 and on the x value it’s +1

Plot the point on the number line below that has the opposite value of 3.

Answers

Answer:Plot the integer 28 and its opposite on the number line.

Solution

Step 1:

The opposite of 28 is −28.

Step 2:

These integers on number line are as shown below.

Plotting integers on a number line 6.3

Step-by-step explanation:

Here is an example
Plot the integer 28 and its opposite on the number line.

Solution

Step 1:

The opposite of 28 is −28.

Step 2:

These integers on number line are as shown below.

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Answers

Answer:

with x being batches

1/2x

I hope this helps:

Answer:

[tex]y=\dfrac{x}{2}[/tex]

What is -4/4 +6 URGENT HELP PLSS

Answers

Answer:

Step-by-step explanation:

To add fractions, find the LCD and then combine.

What is the composition of white light and how is it related to solar radiation?

Answers

Answer:

The spectrum of white light consists of six basic colours arranged in a specific order: red, orange, yellow, green, blue and violet. Although Newton understood that a beam of light of a particular colour is always deviated by the same amount, he did not appear to understand why this is so.

Step-by-step explanation:

Simplify 8(x - 4).

8x - 4
x - 32
8x - 32
x - 4

Answers

Answer:

Correct answer is 8x-32

Step-by-step explanation:

prove me wrong

Answer:

C. 8x32

Step-by-step explanation:

Put it in the right order and type it down in the correct way

Answers

Answer:

Total fish to Angelfish: 14fish to 4 fish

Catfish to Tiger Barbs: 2/5

Tiger Barbs to total fish: 5 to 14

Angelfish to Goldfish: 4:3

Total fish to angelfish total fish =5+3+4+3=15total fish/4 angelfish
Catfish to tiger barbs =2catfish/5 tiger barbs
Tiger barbs to total fish =5tiger barbs:15 total fish
Angelfish to goldfish =4anglefish/3 goldfish

Please help answer asap. Find x

Answers

The answer is 45 degrees

What is the area of the circle? Round your answer to the nearest tenth of a square inch.

Answers

Just use the known formula...

pi * r^2

I think the area is 153.9

PLEASE HELP ASAP I suck at math :( will give brainiest. thx

Answers

The answer is 27. you are welcome :)

It’s 27.... me to.... hopefully this helps you

Three out of every five students wore green on St. Patrick's Day. What percent of the students wore green?

35%
75%
60%
80%

Answers

Answer is =60%
hope this helped

Answer:

60%

Step-by-step explanation:

lol i cant think rn its lod music playing and i really need help

Answers

Answer:

Because the location and the altitude affect the climate because of teh sun... it would be warmer in areas that are closer to the equator and colder at the poles.

Weather reflects short-term conditions of the atmosphere while climate is the average daily weather for an extended period of time at a certain location

The Earth axis give us season. During summer the northern hemisphere is pointed towards the sun while the southern hemisphere is having winter because it is pointed away from the sun

Step-by-step explanation:

Which proportion can be used to find h, the height of the building in feet?

Answers

Answer:

3:6, as 18:?

Step-by-step explanation:

The answer would be 36

A. 3/h=18/6
B.6/3=h/18
C.3/15=h/6
D.6/3=18/h

In particular this amazing conjecture asserts that if ζ(1) is equal to 0, then there are an infinite number of rational points (solutions), and conversely, if ζ(1) is not equal to 0, then there is only a finite number of such points.

Answers

Answer:

i honestly dont really know

Step-by-step explanation:

Whoever answers all three correctly is who I’ll give brainlist to.

Answers

Answer:

a c d i think those are answers

1.A
2.C
3.C or D I believe

Please
Marked as brainlist

1/4 of 12 i need help

Answers

Answer:

Step-by-step explanation:

12*1/4

=12/4

Answer:

the answer is 3 i think, if not, its going to be embarrassing

What is the equation that matches the graph?

Group of answer choices

y = 1/8x

y = 8x

y = 4x

There is no equation because a constant of proportionality does not exist.

Answers

I think answer should be the second option please give me brainlest let me know if it’s correct or not okay thanks bye

The answer is y = 1/8x. The first point is (1,8) and the second is (2,16) which is basically just doubled so it is y = 1/8x. I actually did this at school last week.

Determine if the statement below is always true, sometimes true, or never true.

When x is a nonzero integer, the quantity −3x will be negative.

Answers

I am pretty sure it is always true

Sometimes true! Nonzero can be all positive and all negative! -3(-3)=9 this is an example of why it’s false|| -3(4)=-12 is an example if why it’s true||

I will mark best answer

Answers

Answer:

the ans is 5

Step-by-step explanation:

2j+5=3+2j+2 cancel equal terms which is 2j

so what we have left is

5=3+2

5=5

so 5 is the ans

Answer: infinity many solutions

Step-by-step explanation:

2j + 5 = 3 + 2j + 2

Combine numbers in the right side

2j + 5 = 2j + 5

Minus the smallest j from both side in this case u get rid of both j’s which mean -2j

5 = 5

Divide by 1 or -5

Which mean we get 5 = 5 or 0 = 0

Please help please please help me answer please actually w

Answers

Answer:

35 degrees

Step-by-step explanation:

90 degrees (right angle) - 55 degrees = 35 degrees

90-55=35degrees
x=90-55
x=35

An equation is shown. What is the value of m that makes the equation true? Answer:

m − 3 [tex]\frac{1}{2}[/tex] = 5 [tex]\frac{2}{5}[/tex]

Answers

Add 3.5 to both sides and you would get 8.9
m= 8.9 is the answer

If the simple interest on $7,000 for 3 years is $1,680 , then what is the interest rate?

Answers

Answer:

Calculate Principal, Interest Rate, Time or Interest. ... You received $72 in interest after 3 years. ... where I is interest, P is total principal, i is rate of interest per year, and t is total time in years. In this example I = $72, i = 4% and t = 3 years, so ...

Step-by-step explanation:

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