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
ExtremeBDS [4]
3 years ago
6

−3x + y = 4, −9x + 5y = −1 find x and y

Mathematics
1 answer:
katrin [286]3 years ago
3 0

Answer:

9x - 3y = -12

-9x +5y = -1

2y = -13

y = -13/2

-3x - 13/2 = 8/2

-3x = 21/2

-6x = 21

x = -21/6 = -7/2

(-7/2, -13/2)

You might be interested in
The measure of angle CDE is <br> degrees.
grin007 [14]

CDE = CDB + BDA + ADE

CDE = 42° + 37° + 20°

CDE = 99°

hope it helps...!!!

7 0
2 years ago
Read 2 more answers
F the point T is between the points B and N, then which of the following is true?
valentina_108 [34]
Assuming T, B and N are all on the same line, then we can say

BT + TN = BN

which is the segment addition postulate. 

Subtract TN from both sides to get
BT + TN = BN
BT + TN - TN = BN - TN
BT = BN - TN
BN - TN = BT

Which is what choice C is saying. Therefore the answer is choice C.
3 0
3 years ago
Read 2 more answers
Solve each system by elimination. -8x14y=-14. 5x+7y=0<br><br>help me solve this please.
katrin2010 [14]
The answer is (7/9, -5/9)

(7 over 9 and negative 5 over 9)
8 0
3 years ago
Read 2 more answers
The wind force f on a sail varies jointly as the area a of the sail and the square of the wind speed w.
blondinia [14]

Answer:

  122.5 lbs

Step-by-step explanation:

The relation between force, wind speed, and area can be written ...

  f = ks²a

for some wind speed s and area a.

__

The constant of proportionality, k, can be found from the given data.

  64.8 = k(18²)(500) . . . force in pounds, area in square feet, speed in mph

  k = 64.8/(324×500) = 0.0004

__

Using the equation with the second set of data, we have ...

  f = 0.0004(35²)(250) = 122.5 . . . . pounds

The force on the 250 square foot sail would be 122.5 pounds.

4 0
2 years ago
Which rational number is positive
victus00 [196]

Answer: d

\

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the factored form of x^12y^18+1?
    7·2 answers
  • One number is four times another number. The sum of their reciprocals is 1/4 . What are the numbers?
    8·1 answer
  • I was wondering how do you solve this?
    7·1 answer
  • In 2/5 hour, Matt can type 4/5 page.
    6·1 answer
  • Whatis two plus two​
    14·1 answer
  • Jessica's yearly cost to rent her apartment is $6.300. Which equation represents the total cost of rent per year, c, based on th
    15·1 answer
  • The perimeter of a rectangle is 86cm.
    8·1 answer
  • 4.8m into centimeters
    7·2 answers
  • Determine Mrs chauke'sAnnual income if she earns R32 040 per month
    14·1 answer
  • Kyle uses a spreadsheet to keep track of his spending. this is an example of kyle’s spreadsheet for two months: a 2-column table
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!