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
Nat2105 [25]
3 years ago
5

27-(63-8)and(72-63)-8 is it equivalent or not and why

Mathematics
2 answers:
ZanzabumX [31]3 years ago
5 0
They are not equivalent because 27-(63-8) is equal to -28 and (72-63)-8 is equal to 1.<span />
lord [1]3 years ago
3 0
For the first one is
27-(63-8)
27-55
28

The second one is (72-63)-8
9-8
1


They are not equivalent.
You might be interested in
Explain why their are no solutions to the system of inequalities <br> y ≤2x-5 <br> y ≥2x+1
rosijanka [135]

Answer:

Sorry this is late and I think this is right.

They are both parallel, they have the same slope, and do <em>not </em>intersect. If you were to draw a slope out for it, you would find this to be true.

For example: Say the question called for you to explain why there aren't any solutions to these system of inequalities:

<em>y < - 1/2x -3</em>

<em>y > 1/2x + 2</em>

<em>y= -x/2 -3</em> and <em>y= -x/2 + 2 </em>have the same exact slope, are parallel, and never intersect. The first line is 5 units below the second line when x = 0. Because the lines are parallel, it is always below the second line. The solutions of y < - x/2 -3 are the points in the plane below the first line. The solutions of y > 1/2 + 2 are points above the second line.

I hope this helps you. Good luck on whatever you're working on and stay safe! Please let me know if this helped you or didn't.

7 0
3 years ago
In a class of 40 students, 5 like neither Nokia nor
Vikki [24]

Answer:

No student liked only Nokia

Step-by-step explanation:

The information can be illustrated as shown on the Venn diagram.

The number of students who liked only Nokia is x.

The sum of all regions in the Venn diagram should be 40.

We add all to get:

5 + 5 + 30 + x = 40

40 + x = 40

x = 40 - 40

x = 0

Therefore no one liked only Nokia

8 0
3 years ago
Compare 24 greater than, less than, or equal to 4.256.
r-ruslan [8.4K]

Answer:

Greater than 4.256

Step-by-step explanation:

Because 24 is a whole number and so is the 4 in 4.256. So Because 24 is larger than 4 it is automatically greater than 4

5 0
2 years ago
Read 2 more answers
Gina, Sam, and Robby all rented movies from the same video store. They each rented some dramas, comedies, and documentaries. Gin
weqwewe [10]
Solve using equations:

Gina 11 = a+b+c
Sam 27 = 2a+3b+2c
Robby 19= a+2b+2c

Gina *2 give 22=2a+2b+2c (subtract this from Sam to give)
b=5

the subtract Robby from Gina *2 to give a=3



[Question 1]
let d = number of dramas Gina rented, c = # of comedies, and t = # of documentaries:

[equation a] d + c + t = 11
[equation b] 2d + 3c + 2t = 27
[equation c] d + 2c + 2t = 19

if we subtract [a] from [c] we get:
[equation d] c + t = 8

if we subtract [c]*2 from [b] we get:
[equation e] -c - 2t = -11 or
[equation e] c + 2t = 11

Now we can subtract [e] from [d] to solve for t:
t = 3

Now put in 3 for t in [d] or [e] to solve for c:
c + 2(3) = 11
c + 6 = 11
c = 5

So she rented 5 comedies and 3 documentaries which leaves 3 dramas (which is answer A)
6 0
3 years ago
Read 2 more answers
A little help please
DaniilM [7]

Answer:

x = 30

Step-by-step explanation:

by solving ;

  • 18 / x = 6 / 10
  • 1 / x = 6 / ( 18 × 10 )
  • 1 / x = 6 / 180
  • 1 / x = 1 / 30
  • x = 30

4 0
3 years ago
Other questions:
  • Which is the graph of x – y = 1
    15·1 answer
  • What is x^3-x^2-8x+12 in factored form?
    11·1 answer
  • Zak is 6 years older than half his sister bellas age bella is 6 years old
    11·1 answer
  • 14a+2=<br> What is this answer??
    6·1 answer
  • Any good mathematicians out there?! In need of help<br><br> Brainliest + POINTS
    15·2 answers
  • What is the value of x?<br> X=32<br> X=36<br> X=37<br> X=40
    8·2 answers
  • Help with this ASAP
    14·2 answers
  • Which is NOT a perfect square
    6·2 answers
  • Two cars leave a rest stop at the same time and proceed to travel down the highway in the same direction. One travels at average
    11·1 answer
  • Colin and Brain were playing darts. Colin scored 74. Brain scored 66 less than Colin. What was the combined score? ​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!