Mathematics Middle School

Practice
Solving Any Linear Equation
2(x +5) = 3x + 1

Answers

Answer 1

Answer:

x=9

Step-by-step explanation:

2x+10=3x+1

subtract 2x by both sides?

10=x+1

then subtract 1 on both sides

so its x=9

Answer 2

Answer:

× 89 and that it I think because it re all needs x in the front

Related Questions

how much percent is 109205.7

Answers

Answer:

10 920 570 percent

Step-by-step explanation:

Answer:

10 920 570 %

Step-by-step explanation:

thats the answer i got, most definitely correct!!!

Vito has an 8-inch by 10-inch piece of cardstock. He cuts it in the shape shown below and folds it on the dotted lines. He tapes the slides to make the box shown below. What is the surface area of the box?

Answers

Answer:

52 square inches

Step-by-step explanation:

you measure each side and do 2 times 3 twice and add them together, then you do 2 times 4 twice and add them together, then you do 4 times 3 twice and add all the numbers together and then you get 52

please someone help me

Answers

Answer:

a.125

b.42

c.32

d.48

Step-by-step explanation:

Evaluate each expression for the given value of the variable
1. 38.1+x for x=-6.1
2. 18.7+x for x=8.5
3. 8/15+x for x=-4/15
4. 13/20+x for x=4/20
5. 21.6+ x for x=-11.2
6. 8/13+x for x=2/13
please help me this is due today

Answers

Answer:

Step-by-step explanation:

This problem is asking you to substitute for x.

1. 38.1 + x when x=-6.1

It is giving you what the value of x is, -6.1.

Substitute

38.1 - 6.1

=32

When ever it says x =

That number replaces x and then you solve.

2. 18.7 + x      x = 8.5

18.7 + 8.5

27.2

Do this for the rest of the problems.

Hope this helps!!!

Write an equation and solve for the variable


1.
23 and 7 12 and y




2. 15 and 3 and a 8 and 8 and 8

Answers

Answer:

[tex]23 + 712 = y \\ [/tex]

Group liketerms

[tex]y = 712 - 23[/tex]

subtract

[tex]689[/tex]

The total cost of dinner is divided among five friends. Write an expression to represent the cost for each person for a dinner that costs d dollars. Then find the cost for each person for a dinner that had a total cost of $56.25.

5 d; $11.25
d/5 ; $281.25
5 d; $281.25
d/5; $11.25

Answers

Answer:

d/5; $11.25

Step-by-step explanation:

56.25/5= $11.25

i’m pretty sure it’s the first one

These two figures are similar. Find the length of side y.

Answers

Answer:20

Step-by-step explanation:

Suppose f(x) = 12x - 1,400 and g(x) = 12x - 1,600.
Describe the transformation of the graph of f(x) to the graph of g(x).



Group of answer choices
the graph is translated left 200 units.
the graph is translated up 200 units.
the graph is translated right 200 units.
the graph is translated down 200 units

Answers

the graph is translated down 200 units.
this is the answer!!

If I had 3 apples and i gave 1 away how many would I have?

Answers

Answer:

Step: You have 3 apples a black guy comes and steal 1 you would now have 2 cause you can’t catch a black man

You would have 2 apples left since you gave one away

w-4/h-4=4/3 can someone please answer this its for homework someone told me it was 8 but i got 12

Answers

the letter "w" represents a variable, and the letter "h" also represents a variable. The goal is to solve for either "w" or "h" by using the given information and the rules of algebra.

To solve this equation, we can start by multiplying both sides of the equation by 3 to eliminate the fraction on the right side:

w-4/h-4=4/3

3(w-4/h-4)=3(4/3)

This simplifies to:

3w-12/3h-12=4

Next, we can simplify the expression on the left side of the equation by combining like terms:

3w-12/3h-12=4

3w-3h=-8

Finally, we can solve for either "w" or "h" by using the given information and the rules of algebra. For example, we can solve for "w" by adding 3h to both sides of the equation:

3w-3h=-8

3w=-8+3h

w=-2+h

This means that the value of "w" is equal to the value of "h" minus 2. Alternatively, we could solve for "h" by adding 3w to both sides of the equation:

3w-3h=-8

-3h=-8+3w

h=2-w/3

This means that the value of "h" is equal to 2 minus the value of "w" divided by 3.

A bucket filled with sand weights 900 g. The same bucket, three-quarters full, weights 725 g. How much does an empty bucket weight?

Answers

200 g i think

900 - 725 = 175
725-175=550(two-quarters full)
550-175=375(one-quarter full)
375-175=200 (empty)

Logan is 5 feet tall and his shadow is 8 feet long. At the same time of day, a tree’s shadow is 32 feet long. What is the height of the tree?
29 feet
51 feet
20 feet
24 feet

Answers

The answer to your question is 29

Answer: 29 ft because if his shadow is 8 ft that tells me that  the equation would be less and and 8-5=3 so 32-29=3

Step-by-step explanation:

1. A teacher grades 27 tests in 3 hours. Do these quantities (number of tests graded and time) vary directly or inversely?

2. It took Peter 3 hours to drive to his friend's home in Connecticut. He drove at an average speed of 54 mph. Do these quantities (time and speed) vary directly or inversely?

3. It took Peter 3 hours to drive to his friend's home in Connecticut. He drove at an average speed of 54 mph. Find the constant of variation.

Answers

Answer:

k12 undefined

Step-by-step explanation:

Answer:

9 of one number

Step-by-step explanation:

step one :

given

let the number of test grade be g= 27

time taken t = 3 hours

step two :

the constant variation the number relates two variable that are directly proportional or inversely proportional

so that the direct variation is

g=t/k

k= g/t

k= 27/3

k= 9

Ans

Which list shows the absolute values in order from least to greatest?



HELP MEEE

Answers

For this awnser it would be B

Answer OPTION B

Step-by-step explanation:

No whole numbers are irrational numbers. (true/false)
All irrational numbers are integers. (true/false)
Some whole numbers are not integers. (true/false)
Some integers are not rational numbers. (true/false)

Answers

Answer:

True - No whole numbers are irrational numbers.

False - All irrational numbers are integers.

False - Some whole numbers are not integers.

False - Some integers are not rational numbers.

Identify the slope and y-intercept of the line on the graph. Then, write the equation of the line in slope intercept form. I need all of the answers (all 9 - 12). It'd help me a lot. Thanks.

Answers

Answer:

9: Slope is 2/5 and y-intercept is -3

Equation: y=2/5x-3

10: Slope is 1 and y-intercept is -6

Equation: y=x-6

11: Slope is -1/4 and y-intercept is 5

Equation: y=-1/4x+5

12: Slope is 4/3 and y-intercept is 0

Equation: y= 4/3x + 0

Sorry for not explaining the answers! I was in a bit of a rush, but if you don't understand just let me know by rating my answer because I'd be happy to help! (another day though, I'm full of exams these next 2 weeks hehe)

Please help me I don't understand

What is the number that has a value 10 times the value of 0.009? Please Explain.

Answers

Answer:

Step-by-step explanation:

I don’t know

Answer:

0.09

Step-by-step explanation:

From what I'm understanding you have to use powers of 10. Here's how they work:

All you do is move the decimal point, I know that may sound weird but let me explain.

When we are working with powers of 10 you just multiply the number by 10.

10 x 0.009

Now instead of having to type that into a calculator, or working it out, you can just move the decimal point to the right or the left.

Here's how I remember it:

Multiplying- move it to the right so the number can get bigger

Dividing- move it to the left so the number gets smaller

The number of zeros (0) you have after the one determines how many times you move the decimal point.

100- move the decimal point twice

100000- move the decimal point 5 times

In this case you are multiplying and moving the decimal point to the right once. There is one zero in the number and the problem asks you to multiply.

0.009

= 0.09

You move the decimal point over once.

Hope this helps!!!

n a local shelter, 200 people donated blood during the blood donation week. The samples collected of the different blood types are shown in the graph below.
How many more people with Type A blood donated blood than those with Type B blood

Answers

Answer:

We need a picture

Step-by-step explanation:

we need a picture to answer this

PLEASE HELP THIS IS TIMED!!!!!!!!!!!!!!!!!!

Answers

Answer:

28/42

Step-by-step explanation:

28/42 is the answer.

what would the answer be? (with the work shown) (show how you got the answer pls)

Answers

The answer is 34
Explanations:
The answer is 34


Explanation:

Please help me on the last ones!
(THIS IS DUE TOMMORROW :(

Answers

Answer: For 5 down 3 across is $4.00/3 and 1/10 = $1.29

For 6 down 3 across is $10.90/10 = $1.09

Step-by-step explanation:

The answer for this problem should be 30

PLS HELPPPPPPP (WILLL EVEN GIVE BRANILY!!)

Allyson has 42 tables to set up for her party. The tables need to be lined up in one or more equal-sized rows. How many possible ways can the tables be lined up? (1 point)


There are 9 possible ways to line up the tables.


There are 8 possible ways to line up the tables.


There are 6 possible ways to line up the tables.


There are 4 possible ways to line up the tables.

Answers

Answer:  There are 4 possible ways to line up the tables

Step-by-step explanation:

First, we need to find the factors of 42.
Factors of 42:  1, 2, 3, 6, 7, 14, 21, and 42.

Here we can see 4 pairs of numbers
1, 42
2,21
3,14
6,7
In total that is 4 so the answer would be
There are 4 possible ways to line up the tables

Death Valley, California, is located 282 feet below sea level.

Which equation best represents the depth of Death Valley in feet?

Answers

Answer:

Step-by-step explanation:

Even though death valley is at -282 feet in relation to sea level, it's 282 feet away in distance. So even though the distance is in a different/negative direction, it's still an ACTUAL distance, and we call that absolute value.

-282. According to the question it says the death Valley California is located 282 feet below sea level so it’s -282

help me pleaseeeeeeeeeeeeee

Answers

I believe that this is the correct answer

Answer

(2,3)

Step-by-step explanation:

9x-7y=-3

-9x+15y=27

-------------------

8y=24

divide by 8 on both sides

y=3

now using substitution, you can now work out x

9x-7y=-3

9x-7(3)=-3

9x-21=-3

add 21 on both sides

9x=18

then divide my 9 on both sides

x=2

finito ; )

Need help fast
Giving 45 points

Answers

Answer:

P = 37 in

Step-by-step explanation:

since the base angles of the triangle are congruent then the triangle is isosceles with the 2 legs congruent , then

3x - 2 = 2x + 4 ( subtract 2x from both sides )

x - 2 = 4 ( add 2 to both sides )

x = 6

then

2x + 4 = 2(6) + 4 = 12 + 4 = 16

3x - 2 = 3(6) - 2 = 18 - 2 = 16

the perimeter (P) is the sum of the 3 sides , then

P = 16 + 16 + 5 = 37 in

The answer for P is 37 in.

2x + 7 - 5x + 8 = 3(5 + 6x) - 12x

Answers

Answer: x=0

Step-by-step explanation:

combine like terms

-3x+15=15+18x-12x

-3x+15=15+4x

Move all numbers with variable x to the left side and other numbers to the right side

-7x=0

x=0

Which graph shows only a direct variation between X and y?

Answers

Answer:

A

Step-by-step explanation:

Direct variation graphs always intersect the origin. Therefore, graph A is accurate.

help me please theres a timer

Answers

Answer:

If you were to choose the number 30

5 baskets= 6

6 baskets= 5

Step-by-step explanation:

If you were to pick the number 30 and distrubute it

5 baskets:-

30 divided by 5= 6

6 baskets:-

30 divided by 6= 5

The graph shows the total distance Hope walked for different numbers of hours last week. Which statement is true? Check all that apply.

A) The constant of proportionality can be found by dividing a y-value by its corresponding x-value.

(B) The constant of proportionality can be found by dividing an x-value by its corresponding y-value.

(C) The constant of proportionality is 3.

(D) The constant of proportionality is 5.

Answers

Answer:

A

Step-by-step explanation:

K/your answer = Y-value divided by the x-value to get the answer

HOPE IT HELPS!!!!!!!

ps: I only gave you one answer because you didn't attach the graph

PLEASE HELP EXPLAiN THIS TO ME!! I HAVE A TEST TOMORROW!!! 20 POINTS!! WILL GIVE BRAINLEIST!!!!!!!

Answers

Answer:

For question 2/3 ÷ 1/4
Answer: 8/3 or 2 2/3

Step-by-step explanation:

Common denominator is 12
8/12 ÷ 3/12
Divide (Multiply by the reciprocal)
8/12 x 12/3
Answer is 8/3 or 2 2/3

okay i’ll try to explain it the best i can.

4a: to divide fractions, you keep change flip. keep the 2/3, change the dividing sign to a multiplication sign, and flip 1/4 to 4/1. then multiply. 2 • 4 is 8, and 3 • 1 is 3. 8/3 is an improper fraction, since 8 is greater than 3. 8 can go into three 2 times, which is 6, and leaves 2 behind, making the answer 2 and 2/3.

4b: do the same process as 4a, keep change flip. keep 10/3, change the division to multiply, and flip 2/6 to 6/2. for this one, you can cross multiply. for example, across from 10 is 2. 2<10, so you would see how many times 2 can go into 10, which is 5 times. 2 can only go into 2 one time, so you change the two to a one. do the same thing with 6 and 3. 3<6, so 3 can go into 6 two times, so the six would turn into a 2. 3 can go into 3 one time, so change the 3 to a 1. multiply the new numbers. 5 x 2 is 10, and 1 x 1 is 1. your answer is 10/1 which can also be 10. answer is 10.

4c: same process. keep change flip. end up with 5/6 times 12/7. you can only cross multiply with 6 and 12, since 5 and 7 don’t have a common factor. so for 6 and 12, 6<12. 6 goes into 12 2 times so the 12 turns into a 2. 6 goes into 6 only once, so it turns into a one. multiply. 5 x 2 is 10, 1 x 7 is 7. 10/7 is an improper fraction, so u have to change it. 10 goes into 7 once and three is left. so the answer is 1 and 3/7.

4d: same process keep change flip. we have to change 2 and 3/4 into an improper fraction so it can be easier to multiply. 2 x 4 is 8, and 8 + 3 is 11, so it would be 11/4. keep 11/4, switch division to multiplication, and flip 4/3 to 3/4. multiply and get 33/16. 33/16 is improper so u have to change it. 33 goes into 16 twice and one is left. answer would be 2 and 1/16

that took a while
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Please read the Ethical Computing Guidelines and provide your feedback on the following questions:What constitutes ethical behavior while using a computer?Who would be harmed by violating Guideline 6?How might someone use a computer to commit theft (Guideline 4)?Is it ethical to run an online business using Internet resources provided by your school or employer (Guideline 7)? What about Peer-to-Peer file sharing?Social networking is very prevalent in today's society. What action might be considered unethical using social networking/media? During the year, a company had net credit sales of $100,000; past experience indicates that 0.5 percent of these sales, or $500, should result in uncollectible accounts. 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What is the independent variable? o The water temperature o The number of fish originally in the tank o The amount of food that the fish receive o The number of surviving fish o The sizes Of the aquariums make a model in which a tetrahedral carbon atom has four different color balls bonded to it. observe it carefully. does the model possess any planes of symmetry? this model can be used to represent any molecule that contains one chirality center. as an example, consider 3-methylhexane. draw the structure of 3-methylhexane in your notebook or in the box below and use an asterisk to label the chirality center and name the four different groups attached to it. note that the model with four different color balls can be used to represent 3-methylhexane by simply stipulating that each ball represents one of these four groups. does 3-methylhexane possess any planes of symmetry? draw the structure of 3-methylhexane. for further practice in finding chirality centers, mark any chirality centers present in each with an asterisk.