moneybaga8960 moneybaga8960

02-12-2019
Mathematics

contestada

solve the systems of equations using elimination
3x-5y=-2
4x-7y=-3
a.(-1,-1)
b.( -7/3, -1)
c. (-7/3, 1)
d.(1, 1)

Respuesta :

Yang100 Yang100

02-12-2019

Answer:

x=1, y=1. (1, 1). The answer is D).

Step-by-step explanation:

3x-5y=-2

4x-7y=-3

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

4(3x-5y)=4(-2)

-3(4x-7y)=-3(-3)

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

12x-20y=-8

-12x+21y=9

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

y=1

3x-5(1)=-2

3x-5=-2

3x=-2+5

3x=3

x=3/3

x=1

Answer Link

Otras preguntas

75% of what number is 105

7) A government principle by which the legislative, judicial, and executive powers are essentially held by different groups and people is called

If 80 is 80% of a value what is the value

Which other empires influenced ancient history? What were their contributions to human civilization?

Which best summarizes the flow of energy in a producer? Sun à ADP à muscle cells Sun à mitochondria à C6H12O6 Sun à chloroplasts à mitochondria Sun à mitochondr

Which of these ideas is the main plot point around which the story of Twelfth Night revolves? A. selfish motives B. mistaken identity C. death and loss D. disea

List three cardinal rules of bookkeeping

what is software written by software developers using computer-readable codes called

Article II of the U.S. Constitution describes the structure and powers of the legislative branch organization and duties of the executive branch oversight an

4 loads of stone weigh 2/3 ton. Find the weight of 1 load of stone.