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
aleksandrvk [35]
3 years ago
13

Solve the equation 2/5x-1=9. Complete each step of the solution and check your solution

Mathematics
1 answer:
Fofino [41]3 years ago
3 0

Answer:

x = 25

Step-by-step explanation:

2/5x - 1 = 9

Add 1 to both sides

2/5x = 10

Multiply by 5 on both sides

2x = 50

Divide by 2 on both sides

x = 25

Check the answer:

Plug in 25 for x

2/5(25) - 1 = 9

10 - 1 = 9

9 = 9

The answer is correct.

You might be interested in
Write a equivalent expression for 4(a+5) by modeling
anastassius [24]

Answer:

The answer is 4a+20....

Step-by-step explanation:

Use the distributive property.

According to which when using the distributive property, you have to distribute (multiply) the 4 to the a and then the 4 to the 5. It looks like this.

4(a+5)

4(a)= 4a

4(5)=20

Thus the expression becomes:

4a+20

Thus the answer is 4a+20....

8 0
3 years ago
What is the constant in the expression?
nasty-shy [4]
the answer to this question is b                                                                                                        
5 0
3 years ago
Read 2 more answers
The length of a rectangle 4x + 3y and the width is 7x - 2y. What expression represents the perimeter of the rectangle?
Vlada [557]

Answer:

Perimeter=22x+2y

Step-by-step explanation:

Given:

      length of the rectangle= 4x + 3y

      Width of the rectangle=  7x - 2y

Perimeter of a rectangle= 2(length+width)

                    Perimeter   =2(4x+3y+7x-2y)\\\\=2(11x+y)\\\\=22x+2y

So, the expression of the perimeter of given rectangle is:

                                         22x+2y

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20-%2010%20%5Ctimes%2018%20%7Br%7D%5E%7B%20-%208%7D%20%20%3D%20%20-%202" id="TexFormula1" tit
grigory [225]

Answer:

1.107   =  r

Step-by-step explanation:

To solve this for r, do the following:

Add 10 to both sides, to isolate the r term on the left:  18r^(-8) = 8

Divide both sides by 18, to isolate r^(-8):   r^(-8) = 8/18

Invert both sides:  r^8 = 9/4

Take the natural log or both sides:

8 ln r = ln 9 - ln 4, or

8 ln r = 0.8109, so that ln r = 0.1014

to find r, raise e to the power ln r on the left and e to the power 0.1014 on the right:

  ln r           0.1014

e         =    e              =  1.107   =  r

3 0
4 years ago
Describe each polynomial expression by type and components based on the example
Over [174]

Answer:

Assuming these expressions are listed separately, and it's asking for the specific type of polynomial:

1) binomial, because it is 2 terms

2) trinomial, because it has 3 terms

3) monomial, because it is 1 term

meanwhile, you can learn your greek and latin root words.

Bi means two, tri means 3, and mono means 1.

Step-by-step explanation:

Remember, terms are separated by +'s and -'s, and cannot be simplified further.

5 0
3 years ago
Read 2 more answers
Other questions:
  • The frequency table shows the students' scores on a recent math test.what percentage of the students scored at least 81 on the t
    12·2 answers
  • Lupe sold 40 tickets for a play. She sold some tickets at $3 each and other tickets at $5 each. She collected $136. How many $3
    8·1 answer
  • Of 98 bikes 37 are mountain bikes. How many are not
    12·2 answers
  • When the following expression is written in simplest form, what is the coefficient of the variable term?
    12·2 answers
  • Find the measurement of the angle
    7·1 answer
  • Nina operate the dog walking service she charges a flat fee for $15 plus $5 per hour. which equation represents this liner relat
    12·1 answer
  • Determine the slope &amp; the y-intercept of the following graphs.
    9·2 answers
  • Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 4 liters of natural oil for every 5 liters of
    6·1 answer
  • How far was Zane from the edge of the volcano when he started climbing?
    8·2 answers
  • Place value in the thousands for the 0 in 10000
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!