1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ksivusya [100]
3 years ago
8

What are the steps and properties to this problem

Mathematics
1 answer:
lawyer [7]3 years ago
3 0
3(2m+12) -4m = 20 -3(3m+5)

Step 1. Distribute 3 to (2m+12) and -3 to (3m+5)

Distribution property:
When you are distributing, you multiply the outside number by the numbers inside. For example,
-1(4-2)
-1 times 4, -1 times -2
-4, 2 (negative times negative =positive)
Then you would get
-4+2. You do not distribute with multiplication and division. So then we would do this with our numbers.

6m+36 -4m = 20 -9m-15
______
Step 2. Simplify by adding like terms.

Like terms:
Terms are separated by operation symbols (+,-,*,➗). Like terms are terms with the same variable next to it. 5a and 6a are like terms. Terms with no variables at all are also like terms. 5 and 6 are like terms. 8a and 7 are not like terms. 9a and 9b are not like terms.

6m+-4m= 2m. 20+(-15)=5
_____
2m+36=5-9m

Step 3. Add 9m to both sides
11m+36=5
____
Step 4. Subtract 36 from both sides
11m=-31
____
Step 5. Divide by 11
m=-31/11





If you can please provide brainliest. I took 30 minutes doing this.

You might be interested in
Giovanna,frances, and their dad each carried a 10-pound bag of soil into the backyard. After putting soil in the first flower be
Tanya [424]

Answer:

I got 1.7 Lbs.

Step-by-step explanation:

i turned the fractions into decimals and added them up

6 0
3 years ago
Read 2 more answers
Round 129.392 to the nearest ten,one,tenth,and hundredth. I need help plz
Soloha48 [4]
Nearest ten=130
nearest one=129
nearest tenth= 129.4
nearest hundredth= 129.39
8 0
4 years ago
The product of twice a number and four is the same as the difference of seven times the number and 2/7 Find the number.
GREYUIT [131]

Answer:

the number is -2/7

Step-by-step explanation:

let the number be x

2x ×4= 7x-2/7

8x = 7x-2/7

collect like terms

8x-7x = -2/7

X= -2/7

5 0
3 years ago
What quantity of a 30% solution do you need to make 150 mL of a 20% solution?
Bumek [7]

Answer:

Volume required = 100mL

Step-by-step explanation:

Let the volume of 30% solution required be = V mL

Amount of solute in V mL of solution = 30% of V = 0.3V...............(i)

This amount is also present in 150 mL of 20% solution

For 150 mL of 20% solution we have amount of solute = 150 mL X 20%

                                                                                          = 30..............(ii)

Thus equating i and ii we get

0.3V = 30

Thus V =100 mL

7 0
3 years ago
1/(x-1)x+1/x(x+1)+...+1/(x+9)(x+10)=11/12
nata0808 [166]

Notice that

\dfrac1{(x-1)x} = \dfrac1{x-1} - \dfrac1x \\\\ \dfrac1{x(x+1)} = \dfrac1x - \dfrac1{x+1} \\\\ \vdots \\\\ \dfrac1{(x+9)(x+10)} = \dfrac1{x+9} - \dfrac1{x+10}

That is, the <em>n</em>-th term (where <em>n</em> = -1, 0, 1, …, 9) in the sum on the left side has a partial fraction decomposition of

\dfrac{1}{(x+n)(x+n+1)} = \dfrac1{x+n} - \dfrac1{x+n+1}

and in the sum, some adjacent terms will cancel and leave you with

\dfrac1{(x-1)x} + \dfrac1{x(x+1)} + \cdots + \dfrac1{(x+9)(x+10)} = \dfrac1{x-1} - \dfrac1{x+10} = \dfrac{11}{12}

Now solve for <em>x</em>, bearing in mind that we cannot have <em>x</em> = 0, -1, -2, …, -10 :

\dfrac1{x-1} - \dfrac1{x+10} = \dfrac{11}{12}

Combine the fractions on the left side:

\dfrac{(x+10)-(x-1)}{(x-1)(x+10)} = \dfrac{11}{(x-1)(x+10)} = \dfrac{11}{12}

Then we must have

(x-1)(x+10) = x^2 + 9x - 10 = 12 \implies x^2+9x-22 = (x+11)(x-2) = 0

so that either <em>x</em> = 2 or <em>x</em> = -11.

4 0
3 years ago
Other questions:
  • The vet told Jake that his dog, Rocco, who weighed 55 pounds, needed to lose 10 pounds. Jake started walking Rocco every day and
    9·2 answers
  • Steven wants to buy a $565 bicycle. Steven has no money saved, but will be able to deposit $30 into a saving account when he rec
    7·1 answer
  • Which is an acceptable first property to solve the equation -2x=12
    13·1 answer
  • Actually can ride her bike 15 miles in two hours there are 60 minutes in one hour and there are 1760 yards in 1 mile how many ya
    6·1 answer
  • The water park says it has 2 times as many giant inner tubes as water sprinklers and 4 times as many sprinklers as water slides.
    7·1 answer
  • Which of these statements are true of inference for one or two proportions?
    10·1 answer
  • Solve the inequali<br> -5x &lt; 35
    15·2 answers
  • Jeans are on sale for 20% off the regular price.
    14·1 answer
  • Joanie watched 1 3 of a movie in the morning, and she watched some more at night. By the end of the day, she still had 2 5 of th
    13·1 answer
  • For which days was the change in temperature more than 10 ˚F? Choose ALL that are correct.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!