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
Alex
3 years ago
5

Solve 5x − 6y = −38 3x + 4y = 0

Mathematics
1 answer:
Leto [7]3 years ago
7 0

Answer:

x = -76 , y = 57

Step-by-step explanation:

5x - 6y = -38

3x + 4y = 0

------------------

use 4 to multiply equation 1

5x(4) - 6y(4) = - 38(4)

20x -24y = -152

----------------------

use 6 to multiply equation 2

3x(6) + 4y(6) = 0(6)

18x + 24y = 0

------------------------

20x - 24y = -152

18x + 24y = 0

----------------------

2x = -152

----------------

divide 2 by both sides

x = -76

--------------------

to find y, slot in the of x to either equation 1 or 2

--------------------------------

equation 2

3x + 4y = 0

3(-76) + 4y = 0

------------------------

-228 + 4y = 0

4y = 228 - 0

4y = 228

---------------------

divide both sides by 4

----------------------------------

y = 57

for this type of question, you can use

  1. substitution method
  2. elimination method
  3. graphical method

i used substitution method

hope it helps

You might be interested in
9. What is 999 x 4 =
zimovet [89]
999 x 4 equals 3,996
7 0
3 years ago
Read 2 more answers
HELP I’M GONNA FAIL!!!!!! Pls help ASAP! I NEED TO PROMOTEEEEEE!!!!
Nana76 [90]
Volume of sphere is
V=4/3pi r^3

Where r is 2 in this example so,

V= 10.67 pi
V= 33.51
7 0
2 years ago
Read 2 more answers
please help me to solve this word problems leading to quadratic equation: A girl is 6 years younger than her brother. the produc
vova2212 [387]

Answer:

Brother is 70.5 and sister is 64.5

Step-by-step explanation:

you will need to set up a simple equation and give out variables.

Girls age = 6-x

Brother's age= x

the you will take those 2 and add them and place them equal to 135:

6-x+x=135

6-2x+6=135+6

The 6 cancels out

2x=141

2x/2=141/2

x=70.5

The brother's age would be 70.5 then and the girl's would be 64.5

5 0
3 years ago
A. SAS<br> b. ASA<br> c. AAS<br> d.SSS
Vlad [161]
I think it is b ASA
6 0
3 years ago
Can y’all help me out please
natta225 [31]
Answer: C
ABCD may or may not be a parellolgram. Line BD bisects line AC, however we cant figure out if line AC bisects line BD.
4 0
2 years ago
Read 2 more answers
Other questions:
  • How many pennies is $100
    6·2 answers
  • What is (f-g)(X) ? I'm confused help
    6·2 answers
  • In trail mix, the ratio of cups of peanuts to cups of chocolate candies is 3 to 2. How many cups of chocolate candies would be n
    15·1 answer
  • The circumference of a flower garden is 247 ud. What is the area of the flower garden in terms of
    15·1 answer
  • Please help, will mark brainliest if its fully done.
    9·1 answer
  • Write and solve an equation to find the value of x. PLS HELP!!
    7·2 answers
  • 14x+2y=-10<br> solve equations for y
    11·2 answers
  • Emily is entering a bicycle race for charity. Her mother pledges $0.30 for every 0.25 mile she bikes. If Emily bikes 8 miles, ho
    10·1 answer
  • Solve using the substitution method
    13·1 answer
  • Ahmed transports metal bars of mass 60kg in his van. The van can hold a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!