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
Musya8 [376]
3 years ago
11

The sum of two numbers is 12. The difference of the same two numbers is −4. Find the two numbers.

Mathematics
2 answers:
Amanda [17]3 years ago
8 0

Answer: x = 4, y = 8

Step-by-step explanation:

Let the two numbers be x and y

sum of the two numbers will be

x + y =  12 ------------------------------1

Difference of the two numbers

x - y  =  -4 ----------------------------- 2

Now, to find the two numbers , we solve equation 1 & 2 together

  x + y =  12

  x - y  =  -4

we now add the two equations to eliminate y

   2x =  8

      x = 4.  Now to find the value of y, we substitute for x in any of the equation above

 x + y  = 12

 4  + y = 12

        y =  12 - 4

        y  =  8

   

Butoxors [25]3 years ago
7 0

Answer:

  4 and 8

Step-by-step explanation:

Let 'a' represent one of the numbers. Then the other is 12-a, and their difference is ...

  a - (12-a) = -4

  2a = 8 . . . . add 12

  a = 4 . . . . . divide by 2

  12-a = 8 . . . . find the other number

The two numbers are 4 and 8.

You might be interested in
Solve for x.<br> 8 + x = -4
Verizon [17]

Answer:

x=-12

Step-by-step explanation:

because 8-12 geta you -4

7 0
3 years ago
Read 2 more answers
A graph that has a finite number of data points is
dalvyx [7]
I think it is a discrete graph. I am really not sure but I think that’s what it is.
8 0
3 years ago
In a certain card game you draw one card off a standard deck of 52 cards. If you draw a spade you get paid $12, if you draw a re
Mariulka [41]

Step-by-step explanation:

In a standard deck of 52 cards, there are 2 red aces, 2 red Queens, and 13 spades.  That leaves 35 cards for everything else.

For the game to be fair, the cost must equal the expected value.  The expected value is the sum of each outcome times its probability.

C = (12) (13/52) + (20) (2/52) + (38) (2/52) + (0) (35/52)

C = 68/13

C ≈ 5.2308

4 0
3 years ago
Help me plsss. this is 6th grade math​
dimulka [17.4K]

Answer:

The one you are or were about to pick is correct.

Step-by-step explanation:

5 0
3 years ago
3
siniylev [52]

Answer:

179

Step-by-step explanation:

The total number of animals in the river was 632.

A herd of 187 elephants and 266 zebras left the river area.

Adding them up, the total number of animals that left the river area is:

187 + 266 = 453

Therefore, the total number of animals left at the river area is the subtraction for the animals that left the river area from the number of animals that were there initially:

632 - 453 = 179

3 0
3 years ago
Other questions:
  • Find the area of a triangle with sides lengths 17, 18, and 21.4 units. Round the answer to the nearest hundredth.
    7·1 answer
  • a sequence is defined recursively by the formula f(n 1) = f(n) 8 . the first term of the sequence is 6. what is the next term in
    5·1 answer
  • Ann bought two shirts for $28.95 each and a skirt for $33.95 the sales tax was $3.71 about how much did she pay altogether
    15·1 answer
  • 10. Write the number 2,049 in<br> expanded form.
    15·2 answers
  • Please help me! What does CI = ?
    9·1 answer
  • A juice box made of cardboard measures 4 inches by 1 inch by 2 inches. How much cardboard was used to make this juice box?
    8·1 answer
  • Find the unit rate for the situation: Corrin has twin boys. She buys a box ot
    5·1 answer
  • 22 .Siswa dapat menganalisis persamaan menggunakan identitas trigonometri
    9·1 answer
  • The product of a number and 2.4 is 0.48
    11·1 answer
  • Rational numbers; please help!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!