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
strojnjashka [21]
3 years ago
14

X^2-xy+3y^2=15 x-y=2

Mathematics
1 answer:
weeeeeb [17]3 years ago
8 0

x^2-xy+3y^2=15           x-y=2

Make the equation X:

x = y + 2

Plug in and Solve:

(y+2)^2 - y(y+2) + 3(y+2)^2 = 15

y = (√46) - 7/3

y = - 7 + (√46)/3

You might be interested in
What equation represents the line that passes through the points(6,-3) and (-4,-9)?
marysya [2.9K]
M = - 3 + 9 / 6 + 4
m = 6 / 10
m = 3/5

- 3 = 3/5 ( 6 ) + c
- 15 = 18 + 5c
5c = - 33
c = - 33/5
y = 3/5x - 33/5
8 0
3 years ago
You have $7.45. You buy 8 items that cost $0.83 each. How much money do you have left
Agata [3.3K]

Answer:

$0.81

Step-by-step explanation:

left

7.45-8(0.83)=7.45-6.64=0.81

I hope I have helped you

6 0
2 years ago
Jessica has 5 members in the sewing club that she started. In order to get school sponsorship she must have at least 30 members.
inn [45]

Answer:

A)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is 8c + c = , is it 8cc, 9c, 8c2, 8c
Mnenie [13.5K]

Answer:

9c

Step-by-step explanation:

if you take 8c and add another c, it equals 9c

8 0
2 years ago
Find the slope of the line. (Please explain if you can, and answer in an integer/fraction.)
Setler [38]

Answer:

-2

Step-by-step explanation:

We can find the slope of a line by using two points

(-2,1) and (2,-7)

The slope is given by

m = (y2-y1)/(x2-x1)

   = (-7-1)/(2- -2)

   = (-8)/(2+2)

   = -8/4

   =-2

4 0
3 years ago
Other questions:
  • Mix 20ml per 500 ml of water what is ratio of the amount of insecticide to the amount of water
    5·2 answers
  • 4 Muffins on each plate. There are 0 plates of lemon muffins.
    13·2 answers
  • What number has 2 more tens then 11
    7·1 answer
  • Plz show work and explain
    5·1 answer
  • HELP, What is:<br> 5/2=d-2/4<br> (show work please)
    14·2 answers
  • the mean age of 5 people ina room is 32 years. A person enters the room.The mean age is now 34.What is the age of the person who
    9·1 answer
  • Need a little help please ​
    9·1 answer
  • 9
    5·1 answer
  • HELP ME PLS I REALLY NEEDD HELP!!!! MATH IS HORRIBLE
    12·1 answer
  • Which expression is equivalent to 45a-10b
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!