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
melisa1 [442]
2 years ago
7

Given: 5n - 42 = 12n; Prove: n= -6 What are the Statements What are the Reasons

Mathematics
1 answer:
asambeis [7]2 years ago
4 0

Answer:

-72=-72

Step-by-step explanation:

5n-42=12n

n=-6

5*(-6)-42 = 12*(-6)

-30-42=-72

-72=-72

So, n= -6 is the right number for this equation

You might be interested in
Given the following matrices A and B, find an invertible matrix U such that UA = B:
Naddik [55]

<span>A and B must be invertible, we have UA=B, since A is invertible.  A^-1 exists, by multiplying with A^-1, we have UA A^-1 =B A^-1. But AA^-1 = I (identity matrix) and XI=X, for all matrix X, we find UI= B A^-1, and U= B A^-1.</span>

3 0
2 years ago
Cedric opened a new gallon jug of milk and poured ¾ cup of milk for his mom, ½ cup milk for his little sister and 2 cups of milk
julia-pushkina [17]

Answer:

12 _3/4

Step-by-step explanation:

3/4 + 1/2 + 2 = 3_1/4

16 cups in a gallon

16-3_1/4

=12_3/4

7 0
3 years ago
A figure has vertices at L(3,3), M(2,4), and N(−1,0). After a transformation, the image of the figure has vertices at L′(2,−5),
alexandr402 [8]

The transformation was a reflection over the line x = -0.5

And the image and preimage can be seen in the graph below.

<h3>How to identify the preimage and image?</h3>

First, the original vertices are:

L(3, 3)

M(2, 4)

N(-1, 0)

3 vertices means that our figure is a triangle.

Now, the transformed vertices are:

L'(2, -5)

M'(3, -4)

N'(-1, 1)

And the graph of both sets can be seen below.

Now we can try to identify the transformation.

Now, notice that all the points (L, M, N, L', N', M') are equidistant to the horizontal line x = -0.5

This is a clear implication that the transformation was a reflection over the line x = -0.5

If you want to learn more about transformations:

brainly.com/question/4289712

#SPJ1

3 0
1 year ago
Two numbers are in a ratio 2:3 and their sum is 35.find the numbers​
Marysya12 [62]

Answer:

14 and 21 is the answer

Step-by-step explanation:

Hope it is helpful for you

please follow me

and mark me as a brainest

6 0
3 years ago
Read 2 more answers
Guys can you please to this thank
hram777 [196]
= 16 + 49 - 3(11)  - 4(10)
= 16 + 49 - 33 - 40
= -8
7 0
3 years ago
Other questions:
  • (1 point, Mario leaves Toad Town to visit Peach's Castle, traveling 3 miles per hour. 5 hours later, Luigi leaves Toad Town, als
    8·1 answer
  • A. 1620 <br> b. 180 <br> c. 38 <br> d. 29
    6·1 answer
  • Why are the elements placed into groups/families?
    13·1 answer
  • Solve for all values of x by factoring.<br> x2 + 10x + 8 = x
    13·2 answers
  • 1 3/5 - 5/6 <br><br> pls help!! also make sure to show your work. thanks :)
    6·1 answer
  • 9/6 divided 1/2 can somebody help please
    6·2 answers
  • Latasha earned 18 points on her quiz. If 24 points is equivalent to a score of 100%, which of the following proportions could sh
    12·2 answers
  • What is ( 6 - 8 + 5 ) ?
    12·1 answer
  • I need help with all question, I will give brainliest.
    6·2 answers
  • Where does each go (A,B,C,D,E,F,G,H,I,J)?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!