codymarcinko codymarcinko

15-11-2020
Mathematics

contestada

Solve this system of equations by using a matrix. 6x-5y=-15, 4x+3y=-10

Respuesta :

EpiLord EpiLord

15-11-2020

Answer:

(-2.5,0)

Step-by-step explanation:

1.5(4x+3y)=-10(1.5) =

6x+4.5y=-15

6x+4.5y= 6x-5y (substitution)

-6x from both sides

4.5y =-5y

y=0

6x-0=-15

divide by 6

x=-2.5

Check:

-2.5(4)+3(0)=-10

-10= -10 (correct!)

(6)-2.5-0=- 15 (correct!)

Answer Link

Otras preguntas

Management Control Functions Management as a process This process includes four functioes which include planning organising leading and controlling White al fou

discovery sampling is used to determine a dollar amount of misstatement. True or false?

fill in the blank: once a search engine bot discovers your web page, it _______.

Which statement correctly identifies the line of reflection? 65432 3- -6-5-4-3-2-1₁ -3+ -5 56 x O The triangles are reflected across the x-axis. The triangles a

what did the framers mean to accomplish by indirect election of the president?

compute the mass fractions of a-ferrite and cementite in pearlite

complete the following sentence

Preferential seating, computer access, and a one-on-one teaching assistant are examples of: a. special education b. free and appropriate education c. related se

do resonance structures always contribute equally to the overall structure of a molecule?

Last Wednesday, a School successfully accomplished its school's day. For this program, every student participated in at least one of the activities, athletics o