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
alexdok [17]
3 years ago
14

What is wrong with this question if K =4 then 3k+5=39

Mathematics
2 answers:
Virty [35]3 years ago
7 0
3k+5=-39

3(4)+5=-39
12+5=-39
17=-39

well 17 doesnt equal -39. the variable provided is wrong!

3k+5=-39
3k = -44
k = -14.66666667

so .... k should have been solved for instead of just plugging in a number!
kotegsom [21]3 years ago
4 0
You can tell it's wrong by plugging in 4 for K like so:
3(4) + 5 = 39

12 + 5 = 39

17 = 39

By looking at this you can tell it's false because 17 is not equal to 39.


I hope this helps! Feel free to let me know if you have any questions!

- mathwizzard3

You might be interested in
Help please
mafiozo [28]

Answer:

um 100%

Step-by-step explanation:

The volume is 2.8125 inches

4 0
2 years ago
In segment AC, the midpoint is B. If segments AC = 5x-9 and AB = 2x, what is the measure of segment AC.
IgorLugansk [536]

Answer:

The measure of segment AC is 36 units

Step-by-step explanation:

- The mid-point divides the segment into two equal parts in length

- B is the mid point of segment AC

- That means B divides segment AC into two equal parts in length

∴ AB = BC

∵ AC = 5x - 9

∵ AB = 2x

- The two parts AB and BC are equal in length

∴ BC = 2x

∵ AC = AB + BC

- Substitute the values of AB and BC in the expression of AC

∴ AC = 2x + 2x

∴ AC = 4x

∵ AC = 5x - 9

- Equate the two values of AC

∴ 5x - 9 = 4x

- Add 9 to both sides

∴ 5x = 4x + 9

- Subtract 4x from both sides

∴ x = 9

- Substitute the value of x in any expression of AC

∵ AC = 4x

∵ x = 9

∴ AC = 4(9) = 36

* The measure of segment AC is 36 units

8 0
3 years ago
Question 1 of 15<br> Solve 18x+62 12x+18.<br> A. x ≥ 4<br> B. x≤ 4<br> C. x≤2<br> D. x ≥ 2
Alborosie

Answer:

18+62=80x

12+18=30x

x=80÷30=2

x>2

4 0
2 years ago
8. Which function is shown on the graph below?
Dafna11 [192]

Answer:

the answer is c

Step-by-step explanation:

-then+

6 0
2 years ago
Simplify the expression. 2(x-3)+4y-2(x-y-3)+5
Rasek [7]
2(x - 3) + 4y - 2(x - y - 3) + 5 =
2x - 6 + 4y - 2x + 2y + 6 + 5 =
6y + 5 <== ur x terms cancel and ur 6's cancel
3 0
3 years ago
Read 2 more answers
Other questions:
  • girtue goes to the store and buys a rusy car for $55. the store has a sales tax of 5.5% how much will gertue have to pay
    6·1 answer
  • This another one that i am having trouble on!!!
    14·2 answers
  • laney pays $0.99 for each song she downloads from the internet. in total she paid $24.75 for songs from the internet. how many s
    7·1 answer
  • The slopes of LM and HN both equal 0. What can you conclude about the segments
    9·2 answers
  • The projected number of employed writers and authors in 2016 is 153,000. 12.4% of those will have some college experience but no
    5·1 answer
  • Lucy had $9.72 after leaving the game store if she bought a game for $34.79 how much money did she have before she went into the
    10·2 answers
  • 2. The 120 sixth graders are going on a
    10·1 answer
  • Giving brainliest if right!!
    12·2 answers
  • Please help me with these questions :) tysm
    8·1 answer
  • 2. A father offers three portions of his crop land to his daughter for a corn maze. All
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!