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
mr Goodwill [35]
3 years ago
8

The sum of two numbers is "-1" One number is 12 more than the other one. Find the numbers.

Mathematics
1 answer:
ruslelena [56]3 years ago
7 0

Answer:

x = 5.5

y = - 6.5

Step-by-step explanation:

Let one of the numbers = x

Let the other number = y

x + y = - 1

x = y + 12    Put the second equation into the first one

y + 12 + y = - 1       Subtract 12 from both sides

y + y = - 1 - 12        Combine both left and right sides

2y = - 13                Divide by 2

2y/2 = - 13/1

y = - 6.5

x + y = - 1

x - 6.5 = - 1            Add 6.5 to both sides

x = 5.5

You might be interested in
Solve the system of equations below.<br><br><br> A. <br><br> B. <br><br> C. <br><br> D.
timofeeve [1]

Answer:

  A.  (-7 -2)

Step-by-step explanation:

You can eliminate y by multiplying the first equation by 7 and subtracting 6 times the second equation:

  7(-3x +6y) -6(5x +7y) = 7(9) -6(-49)

  -21x +42y -30x -42y = 63 +294 . . . . eliminate parentheses

  -51x = 357 . . . . . . . . collect terms

  x = -7 . . . . . . . divide by -51. This matches answer choice A.

7 0
3 years ago
Enter the number that belongs in the green box
OLga [1]

Answer:

x=96°

y=96°

Step-by-step explanation:

y=84° because of vertical angles. the measure of all 4 angles added together is 360°, so we add the 84° and the other 84° angle, and subtract them from 360° to get the sum of the other two angles

360°-(84°+84°)=192°

divide 192° by 2 to get the measure of one angle

therefore, x=96°

5 0
3 years ago
Read 2 more answers
All radical expressions that are equivalent to 3 2/5
SCORPION-xisa [38]

Answer:

15

Step-by-step explanation:

√15 (3√5)^2 3√5^2 3√10

4 0
3 years ago
The point (3,0) lies on the graph of P(x)=x^3-7x^2+15x-9. True or False​
swat32

Answer:

True

Step-by-step explanation:

We can plug in and see.

If (3,0) is on the graph of P, then P(3) will evaluate to 0.

Let's try it:

P(3)=(3)^3-7(3)^2+15(3)-9

P(3)=27-7(9)+45-9

P(3)=27-63+45-9

P(3)=-36+45-9

P(3)=9-9

P(3)=0

Since P(3)=0, then (3,0) is an ordered pair of P.

8 0
3 years ago
F(x) = x°-9x
laila [671]
F(x)=x^3-9x
and
g(x)=x^2-2x-3

so you just need to divide f(x) by g(x)

Therefore:

f(x)/g(x) = (x^3-9x) / (x^2-2x-3)

and of course you need to factor these two function to see if some factor would cancel another

x^3-9x = x(x^2-9)=x(x-3)(x+3)
and
x^2-2x-3 = (x-3)(x+1)





8 0
3 years ago
Other questions:
  • A graphic novel author spends 3 days writing for every 5 days she spends illustrating. If she spends 20 days illustrating, how m
    12·2 answers
  • Polygon ABCDE is reflected across the x-axis to form polygon A′B′C′D′E′. Then polygon A′B′C′D′E′ is dilated by a scale factor of
    12·2 answers
  • The height of a projectile in the air t seconds after it is shot can be modeled by the function y = -16t^2 + 3200t + 2, where t
    15·1 answer
  • I need help on this.​
    14·1 answer
  • PLZ HELP URGENT!!!!!!!
    15·2 answers
  • Solve this algebraic expression:<br> 5x-2(3x)
    10·2 answers
  • At a concert 1,600 in tickets were sold. Adult tickets were $9 each and children’s tickets were $4 each. If the number of adult
    12·1 answer
  • The area of a rectangular piece of land is 5/16 square mile. .
    9·1 answer
  • A spinner is divided into five sections numbered 1 through 5. Juana records the number the spinner lands on for each of 50 spins
    9·1 answer
  • How many solutions can be found for the equation 4x 5 = 10? Zero One Two Infinitely Many.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!