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
saul85 [17]
3 years ago
8

Expand: -1/3(-2x-21)

Mathematics
2 answers:
SSSSS [86.1K]3 years ago
6 0

Answer:

Step-by-step explanation:

Simplifying

3(2x + -1) = 21

Reorder the terms:

3(-1 + 2x) = 21

(-1 * 3 + 2x * 3) = 21

(-3 + 6x) = 21

Solving

-3 + 6x = 21

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3' to each side of the equation.

-3 + 3 + 6x = 21 + 3

Combine like terms: -3 + 3 = 0

0 + 6x = 21 + 3

6x = 21 + 3

Combine like terms: 21 + 3 = 24

6x = 24

Divide each side by '6'.

x = 4

Simplifying

x = 4

Margarita [4]3 years ago
3 0

Answer:

2/3x + 7s

Step-by-step explanation:

-1/3 ( -2x - 21) = -1/3 * (-2x) - (-1/3) * 21 = 2/3x - (-7) = 2/3x + 7s

You might be interested in
Which pair of points have -3 as the y-coordinate
loris [4]
...........The answer is C
4 0
3 years ago
Marcus is making cookies. The recipe says 214 cups of flour are needed for each batch. Marcus wants to make 3 batches of cookies
Valentin [98]

Answer:

642 Cups of Flower

214 × 3 = 642


8 0
3 years ago
Read 2 more answers
Is y=-½x+2 perpendicular to -2x+1​
BartSMP [9]

Answer:

i think no sorry if im whrong

3 0
3 years ago
A whale weighs 4 tons. A great white shark weighs 10,200 pounds. How many
slavikrds [6]

Answer:

<em>C: The shark weighs 2200 pounds more than the whale.</em>

Step-by-step explanation:

So you have to remember first that one ton is equal to 2,000 pounds. Then, we convert tons to pounds (for the whale) to get 4(2,000)=8,000 pounds. So, the whale weighs 8,000 pounds. The shark weighs 10,200 pounds, so all you have to do now is do 10,200-8,000 to get 2,200 pounds.  So, the answer is C.

8 0
3 years ago
Read 2 more answers
Noah gathered data at his school among 7th and 8th graders to see if there was an association between grade level and handedness
mash [69]

Answer: 4) 157

Step-by-step explanation:

We know that there is no association between the grade level and the andedness, then we should find that the ratio between left handeds and right handed is the same for both grades.

In 7-th grade we have:

Left handed : 11

Right handed: 72

The ratio is 11/72 = 0.14

Then, the ratio for the 8-th graders must be about the same:

Left handed: 24

Right handed: X

Ratio: 24/X

Let's start with the bigger option, X = 157.

24/157 = 0.15

Ok, we now see that with the bigger option we obtained almost the same ratio (if we use the smaller values for X, we will get a ratio bigger than 0.15, so 0.15 is the better aproximation that we can find to the 0.14 of the 7-th graders)

Then the correct option is 4) 157

4 0
3 years ago
Other questions:
  • Combine as indicated by the signs. <br> x+2/x+4 - x-1/x+6
    9·1 answer
  • The sum of two numbers is 27 .One number is 3 more than the other number.Write and solve a system of equations to find the two n
    13·2 answers
  • Tickets to a movie cost $7.25 for adults and $5.50 for students. a group of friends purchased 8 tickets for $52.75. write a syst
    7·1 answer
  • 268,498 to the nearest ten
    11·1 answer
  • Please help me on this problem.​
    15·1 answer
  • 3a. Find the value of a.<br> Can you pls add work thank you for your time
    7·2 answers
  • Convert the decimal below to a fraction in simplest form. 0.689
    6·1 answer
  • 2^4 x 4^4 = 2^4 x 2^n = 2^12
    5·1 answer
  • Write the domain and range of the given figure.
    11·1 answer
  • When factoring the equation 9x2+9x+2 what two numbers will the "9x" term be broken into?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!