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
Stella [2.4K]
2 years ago
9

Write down the solution to the simultaneous equations.

Mathematics
1 answer:
julia-pushkina [17]2 years ago
4 0

Answer:

x = 5/2; y = 7

Step-by-step explanation:

2x + y = 12

y = 2x + 2

Use substitution to replace y in the first equation with 2x + 2.

2x + 2x + 2 = 12

4x + 2 = 12

4x = 10

x = 10/4

x = 5/2

y = 2x + 2

y = 2(5/2) + 2 = 5 + 2

y = 7

You might be interested in
CAN SOMEONE HELP ME WITH NUMBER 7??<br> I WILL GIVE BRAINLIEST!
nirvana33 [79]

Answer:

tanx-(\sqrt(11))/(5)cosx>0

Step-by-step explanation:

Because to do this kind of trig you first have to know how to do basic trg

4 0
3 years ago
There is 60% chance that it will rain today. If it rains, the probability of watching a movie is 0.5. But, if it does not rain t
agasfer [191]

Applying the given probabilities, it is found that there is a 0.42 = 42% probability of watching a movie today.

These following <em>probabilities </em>involve a movie being watched today:

  • 0.5 of 0.6(if it rains today).
  • 0.3 of 1 - 0.6 = 0.4(if it does not rain today).

Hence, adding them:

p = 0.5(0.6) + 0.3(0.4) = 0.3 + 0.12 = 0.42

0.42 = 42% probability of watching a movie today.

A similar problem is given at brainly.com/question/14398287

5 0
3 years ago
I need help with this as soon as possible!​
Kay [80]

Answer:

1. -3/6 is negative, because it descends by 3 and goes over by 6.

2. My first answer literally gives the keyword negative, therefore it's a negative line because it has a <em>negative slope</em>.

1. -8/0 is undefined, because there is a rise but there is no run, which also means that it's a:

2. vertical line

1. -5/-10 simplifies to 5/10 or 1/2, which is positive because it rises by 5(or 1) and runs over by 10(or 2).

2. Thus, this means that it's a positive line since it has a <em>positive slope</em>.

1. 0/-2 is zero, because when you actually solve the equation it'll equal 0.

2. This means that it'll have a horizontal line since there is no rise but there is a run only.

8 0
2 years ago
HELP FAST!!
katrin2010 [14]
I got b I think that’s the answer
3 0
3 years ago
If r || s and m 5 = 65°, what is m 1?
lesya [120]

1 and 5 are corresponding angles, so both have the same measure:

m 1 = m 5

m 1 = 65º


Answer:  option D. 65º.


I hope this helps. =)

8 0
4 years ago
Other questions:
  • Which equation has x=-6 as the solution? A-logx36=2. B-log3(2x-9)=3. C-log3 216=x. D-log3(-2x-3)=2
    15·1 answer
  • ( picture provided ) PLEASE HELP!!! ANSWER THE ONES YOU CHOOSE BUT CORRECT ANSWERS ONLY.
    13·1 answer
  • Find the domain and range of the relation. {(−8,−4),(15,14),(−2,15),(14,−11),(19,−19)}
    13·2 answers
  • Can someone help me out with this question? How do you use the Pythagorean theorem to answer b?
    10·2 answers
  • 0.25 divided by 0.14
    15·1 answer
  • Which is the graph of the linear function that is represented by the equation y= 1/2x-2
    13·1 answer
  • HELP PLEASE<br><br><br><br> i cant tell wither its c or d cause im an idiot
    10·2 answers
  • PLS HELP<br>First answer- (5,0) (10,0)<br>Second answer- (0,1//20) (0,20)<br>​
    6·1 answer
  • Which set of numbers are opposites?<br> |-6| and 6<br> -6 and 6<br> -6 and 0<br> 6 and 0
    9·2 answers
  • What is the length of line segment DG?<br><br> 4 units<br> 7 units<br> 12 units<br> 23 units
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!