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
Tju [1.3M]
3 years ago
10

X+y=0 and x-y=10 solve by substitution.. How do I figure out the problem!

Mathematics
2 answers:
Anastasy [175]3 years ago
6 0
x+y=0 \\ x-y=10 \\\\
x=-y\\
x-y=10\\\\
-y-y=10\\
-2y=10\\
y=-5\\\\
x-5=0\\
x=5\\\\
\boxed{(x,y)=(5,-5)}
fomenos3 years ago
6 0
  x+y=0
- x-y=10
--------------
(0)+2y=-10 [x and -x cancel each other out. y minus -y is the same as y+y]
y=-5 
now substitute -5 in for y in either problem:

x+-5=0
x=5
You might be interested in
A can of mixed nuts contains 54 nuts, including 21 pecans.
Luda [366]

Answer:

7/18

Step-by-step explanation:

21 out of 54 = 21/54 = 7/18

5 0
2 years ago
Read 2 more answers
If the probability of surviving a head on car accident at 55 mph is 0.097, then what is the probability of not surviving
BabaBlast [244]

The probability of not surviving a head-on car accident is: 0.903

Step-by-step explanation:

The probabilities of occurrence and non-occurrence of an event add up to one.

If p is the probability that an even will happen and q is the probability that it will not happen

Then

p+q=1

Here,

Probability of surviving = p = 0.097

Probability of not surviving = q = ?

0.097 + q = 1\\q = 1 - 0.097\\q = 0.903

The probability of not surviving a head-on car accident is: 0.903

Keywords: Probability, Inverse

Learn more about probability at:

  • brainly.com/question/4460262
  • brainly.com/question/4464845

#LearnwithBrainly

5 0
3 years ago
Si f(x)=2x^{2}−3x+1 y g(x)=x−3. Entonces (f∘g)(−1) es:
WARRIOR [948]
Huh? this is very confusing 12
7 0
2 years ago
What is the length of BC in the right triangle below?
artcher [175]
I wanna say 60 but i dont know
5 0
3 years ago
In a circle with radius 9, an angle measuring pi over 3 radians intercepts an arc. Find the length of the arc in simplest form
BlackZzzverrR [31]

Answer:

6

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Bob ate 10 carrots and 7 hershey's kisses and the total calories were 263. fred ate 4 carrots and 8 hershey's kisses and the tot
    11·1 answer
  • Which inequality is represented by this graph?
    10·1 answer
  • -1/4 in decimal form
    7·1 answer
  • 7 1/3 ∙x = 1.6÷ 6/11
    13·1 answer
  • F(x) = (x + 3)(x + 5).
    7·2 answers
  • At Bridgeview School,7/10 of the total students are driven to school by their parents. Another 1/6 of the total students at Brid
    6·1 answer
  • Wrote the slope-intercept form of the equation of each line.
    9·1 answer
  • I need help on this question!
    9·2 answers
  • Write the equation of the line passing through point (-6,0) and perpendicular to y=3/2 x​
    12·1 answer
  • Sound intensity, I, from a spherical source is a function of the distance, r, from the source of the sound. It is represented by
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!