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zlopas [31]
3 years ago
8

Which of the following describes the correct process for solving the equation 2x − 4 = 20 and arrives at the correct solution? A

dd 4 to both sides, and then divide by 2. The solution is x = 12. Divide both sides by −4, and then subtract 2. The solution is x = −7. Subtract 4 from both sides, and then divide by 2. The solution is x = −12. Multiply both sides by −4, and then divide by 2. The solution is x = −40.
Mathematics
1 answer:
Gelneren [198K]3 years ago
8 0

Answer:

<u>The correct answer is A. Add 4 to both sides, and then divide by 2. The solution is x = 12.</u>

Step-by-step explanation:

1. For solving the question and understand which of the statements matches with the solution, let's proceed with the equation:

2x − 4 = 20

2x  - 4 + 4 = 20 + 4 (Adding 4 at both sides)

2x = 24

2x/2 = 24/2 (Dividing by 2 at both sides)

x = 12

<u>The correct answer is A. Add 4 to both sides, and then divide by 2. The solution is x = 12.</u>

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Solve this equation. Does the equation have one solution, no solution, or infinitely many solution. 8(3x – 6) = 6(4x + 8)
Nataly [62]

Answer:

no solution

Step-by-step explanation:

8(3x-6)=6(4x+8)- remove the parentheses

24x-48=24x+48 - then you cancel the equal terms

-48=48

that is false showing that there is no solution

7 0
3 years ago
Gerald graphs the function f(x) = (x – 3)2 – 1. Which statements are true about the graph? Select three options.
Phoenix [80]

Answer:

The answer is "Choice B, C, and F is correct".

Step-by-step explanation:

The following are choices, which is missing in the question, that can be defined as follows:

A) {x| x ≥ 3} is the domain.  

B) The set shall be {y| y ≥ –1}.  

C) over the interval  (–∞, 3), is the function, that decreases.  

D) it's over the duration the function increases its value, that is (–1, ∞).  

E) The symmetry axis will be x = – 1.  

F) vertex is (3, – 1).

  • In choice A, It is incorrect even though f is the domain, which is all true numbers because it has a quadrant function.  
  • In choice B, it is correct.  
  • In choice C, It is valid because it was a parable open with vertex so if we exploded view f (3, -1). Because as value opens up, its value with x from-∞ to 3 drops while it goes up from increasing from 3 to ∞.    
  • In choice D, It is wrong since we have just said f decreases from-∞ to 3. Therefore, f decreases from -1 to 3, too. Therefore, f doesn't grow from -1 to ∞.  
  • In choice E, It is incorrect because the symmetry axis is x = 3.  
  • In choice F, it is true.
6 0
4 years ago
HELP ME ASAP Match the result of solving an equation to the number of solutions the equation has
Sever21 [200]

Answer:

x=3 is one solution

3=3 has infinitely solutions

6=3 has one solutions.

Step-by-step explanation:

I got it correct on Edg.

5 0
3 years ago
Needing help with some of my college summer HW
Arte-miy333 [17]

B. Half the speed of the car. and C. The number of different colors on the page.


Variables are symbols for unknown values, so you have to find the statements that contain an unknown value.


A. 27 ⇒ The point value is known, so there is no variable.

B. \frac{1}{2}X ⇒ Since the speed of the car is unknown, the variable X represents the speed of the car. This variable is multiplied by \frac{1}{2} or divided by 2 to get half the speed of the car.

C. X ⇒ The number of different colors is not known, so the variable X represents the number of different colors.

D. 80 ⇒ There is nothing unknown in the statement.


5 0
3 years ago
Help me with this sum please
vovangra [49]
Volume=length times width times height
this should be easy

a.
the volume of a box is 2.5 times 1 times 1 or 2.5 cubic meters

b.
number of boxes times volume per box=volume of container
number of boxes=volumecontainer/volumebox
find volumecontianer
volumecontainer=5 times 2 times 3=30 cubic meters

number of boxes=30/2.5
number of boxes=12
12 boxes needed to fill container


c.
box
1m=100cm
1m by 1m by 2.5m convert so (times everybody by 100)
100cm by 100cm by 250cm
multiply
2,500,000 cubic centimeters
4 0
3 years ago
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