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
Lapatulllka [165]
3 years ago
13

( use elimination) on 3x+5y=12 and x-3y=4

Mathematics
1 answer:
Elena L [17]3 years ago
7 0

Answer:

x=4 y=0

Step-by-step explanation:

3x+5y=12

-(x-3y=4)

3x+5y=12

3(-x+3y=-4)

3x+5y=12

-3x+9y=-12

14y=0

y=0

Then, substitute the y into the equation to find x

x-3(0)=4

x=4

You might be interested in
What are the variables in the expression x+8-y?
maksim [4K]

x and y i think, I haven't done that in a long time.

4 0
3 years ago
Read 2 more answers
A store manager did a study to determine the amount of money the first 50 customers spent in her store. The data are approximate
MatroZZZ [7]
P(x > 35) = 1 - P(x < 35) = 1 - P[z < (35 - 29.60)/10.50] = 1 - P(z < 0.5143) = 1 - 0.6965 = 0.3035

Therefore, answer is 0.30 to the hundredths place.
6 0
4 years ago
X 52° 46° Find the unknown angle measure​
Igoryamba

Answer:

82 degrees

Step-by-step explanation:

It should all equal 180 so 52+46=98 and 180-98 is 82

4 0
3 years ago
PLZ HELP I DONT KNOW IT!!:(Polly uses a probability simulator to pull colored ribbons from a bag 60 times and to flip a coin 60
Vanyuwa [196]

the answer is i belive 462/3600 because the total amount of times a ribbon has been pulled is 60 and the total amount of times a coin was flipped was 60 times as well so you would do 21/60 times 22/60 which 462/3600Step-by-step explanation:

4 0
3 years ago
What are roots of the equation -90=x (x-18)
daser333 [38]

Answer:

-90=x(x-18)

-90=x^{2}-18x

0=x^{2}-18x+90

x=9+3i   or   9-3i

Step-by-step explanation:

you need to use quadratic formula and you will find square root a negative ( -9 ), which is an imaginary no.

square root (-9) = 3i

4 0
3 years ago
Other questions:
  • What’s the number of cups in 7 pints in a equation
    12·1 answer
  • HELP WILL MARK YOU BRAINLIEST NO GUESSES PLZ!!!!!!!!!!!!
    12·2 answers
  • Sam ran 63,756 feet in 70 minutes. What is sam’s rate in mile per hour
    13·1 answer
  • HELP WILL MARK BRAINLIEST
    12·1 answer
  • How many solutions are there to this equation?
    12·2 answers
  • If y varies inversely as x and y = 27 when x = 2, find x when y = 9. *
    9·1 answer
  • How do I use substitution to solve a system of linear equations?
    7·1 answer
  • What are the solutions of 6x2 − 216 = 0?
    14·1 answer
  • 7. The graph shows the height, h, in feet, of water
    9·1 answer
  • The value of a company’s stock is represented by the expression x2 – 2y and the company’s purchases are modeled by 2x + 5y. The
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!