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
iren2701 [21]
3 years ago
11

How to work -1x-2y=-13 x-2y=11 equation by substitution

Mathematics
1 answer:
Norma-Jean [14]3 years ago
5 0
Well if you're wanting to use substitution, you first have to end up with one term on either side of the equation. Use the second one as it's easiest. 

So: x-2y=11, so find -2y as there is a -2y in the first equation. 
then that becomes -2y=11-x. then sub that into equation 1, and you get:

-x+11-x=-13, which equals to -2x+11=-13, which is -2x=-24, so therefore

x=12. then chuck the x into any of the equations to find what y equals. 

hope this helps!
You might be interested in
A Stained Glass window it is pictured below the curve lines are semi circles and ABCD is a square with sides 8 feet what is the
pishuonlain [190]
If the square is the window (I couldn't decipher the grammar/punctuation), the area is 64 feet squared. Since it is a square, the formula to find the area is sxs (side length times side length). 8x8=64, which makes the total area 64 square feet.
6 0
4 years ago
Henry has a bag containing 39 letter tiles, some consonants, and some vowels. He selects a tile without looking and then replace
adoni [48]

Answer:

21 consonant tiles

Step-by-step explanation:

Henry has a bag containing 39 letter tiles, some consonants, and some vowels.

He selects a tile without looking and then replaces it. If he pulls 7 consonant tiles and 6 vowel tiles, which is the most likely number of consonant tiles in Henry's bag?

Step 1

We add up the number of tiles that he pulls out of the bag

= 7 consonant tiles + 6 vowel tiles

= 13 tiles

Step 2

We divide the total number of tiles in the bag by the total number of tiles that was pulled out of the bag

= 39 tiles ÷ 13 tiles

= 3

Step 3

The most likely number of consonant tiles in Henry's bag is calculated as:

3 × The number of consonant tiles that was pulled out of the bag.

Hence:

3 × 7 consonant tiles

= 21 consonant tiles.

Therefore, the most likely number of consonant tiles in Henry's bag is 21 consonant tiles.

4 0
3 years ago
Find an angle between 0 and 360 degrees that is coterminal with 232
chubhunter [2.5K]

Answer:

Hola que hace

:I

Step-by-step explanation:

4 0
3 years ago
HELP!!!! which system of inequalities are shown?
guapka [62]

I believe the answer is b

3 0
4 years ago
Read 2 more answers
In a box of marbles, the ratio of red marbles to total marbles is 2:5. the ratio of green marbles to total marbles is 3:10. if t
STALIN [3.7K]
Ratio:

Red : Total 
  2   :    5
 (x2)    (x2)
  4   :   10

Green : Total
  3   :       10

Total of red and green marbles = 4 + 3 = 7

Blue marbles = 10 - 7 = 3

10 parts = 40 marbles
1 part = 40 ÷ 10 = 4
3 parts = 4 x 3 = 12

Answer: There are 12 blue marbles.
7 0
3 years ago
Other questions:
  • 4. Denise thinks of a number, multiplies by 7, and then subtracts 2 from the 5 points
    9·1 answer
  • What are the zeros of this function?
    15·2 answers
  • Throughout any given month, the maximum and minimum ocean tides follow a periodic pattern. Last year, at a certain location on t
    10·2 answers
  • Answer pls im desperate (10 pts) (how many solutions does this have)
    11·1 answer
  • HELP ME PLEASE ASAP PLZ
    13·1 answer
  • Can you add 4r + 4rg?<br> Explain why or why not.
    5·2 answers
  • HELLPPP PLEASEEEEEEEEE :))))))
    14·2 answers
  • PLEASE HELP!! The measure of angle 3 is 101 degrees. Find the measure of angle 4. ILL MAKE YOU BRAINLIEST.
    14·1 answer
  • Help me solve the following 5(2x+7)=
    9·1 answer
  • I need help I don't really understand​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!