rummanehlara rummanehlara
  • 13-12-2017
  • Mathematics
contestada

Which set of coordinates satisfies the equations 3x − 2y = 15 and 4x − y = 20? (2, -7) (1, -6) (5, 0) (0, -7.5)

Respuesta :

jyoung551780
jyoung551780 jyoung551780
  • 13-12-2017
I feel that the best way to solve is by using elimination method. This is what you do.....
3x - 2y = 15
4x -  y  = 20
Multiply the bottom equation with -2.
3x - 2y = 15
-8x + 2y = -40
Now add both equations.
-5x = -25
Divide.
x = 5
Now plug in your x-value into any one of the original equations.
3(5) - 2y = 15
15 - 2y = 15
Subtract 15 from both sides.
-2y = 0
Divide.
y = 0
So your solution is (5,0).
I hope this helps love! :)
Answer Link
hhuggins hhuggins
  • 06-11-2020

The answer is C for Plato

Step-by-step explanation:

Answer Link

Otras preguntas

Severe symptoms of food allergy
A car accelerates at a rate of 3.0 m/s2 after stopping at a red light. If the mass of the car is 3000 kg, what force does its engine exert?
6) Suppose you put $200 in a savings account. The account earns simple interest at an annual rate of 10%. You earned $100 in interest. How many years did you ke
Find the value of each missing variable
please help on the half circle one
Why were people segregated in the north?
Figure PQRS is a rectangle. Which statement in not necessarily true: A: PQ is parallel to RS B: PQ is congruent to RS C: M D: PQ is congruent to QR
I will give you 30points y = x + 4 5x + 3y = -4 Help please system by substitution And help with y = 2x and -8x – 2y = 24
Name the two major projects president Eisenhower pushed for?
help Pema(change into passive voice) ​