greta2004 greta2004

22-07-2021
Mathematics

contestada

Determine the value of k so that the following system has an infinite number of solutions
10x+ky= -8
-15x-6y= 12
Please help.

Respuesta :

oanhha213 oanhha213

22-07-2021

Answer:

k=4

Step-by-step explanation:

remove x:

10x.(-3) + ky.(-3)=-8.(-3) (1)

-15x.2 - 6y.2 = 12.2 (2)

(1) - (2) => -3ky+12y = 0

<=> (12-3k)y = 0

so that y has infinitely many solutions then

12-3k = 0 => k=4

Answer Link

Otras preguntas

Tyuui eluigi UU y delechos.En definitiva, el diálogo hace posible el intercambio de opiniones y es en sí mismo una virtud democrá-tica, porque evita el recurso

7. Mr. Westhad a bag full of 30 marbles consisting of purple, green, and white marbles. He concluded that the probability of picking a white marble from the bag

This country was once home to the Maya and Aztec civilizations, came under Spanish control in the 1500s, and since 1917 has been a representative, democratic re

Shelby needs three different colors of pens to organize her daily planner if she has 12 pints to choose from how many ways can she select three different colore

How did Shakespeare influence the drama of his time? A: He influenced playwrights to produce only tragedies B: He made revolutionary changes to the current dram

Hamilton Mutual Bank holds deposits of $500 million. It holds reserves of $30 million. It has purchased government bonds worth $75 million. The current value of

3. If a pipe with flowing water has a cross-sectional area nine times greater at point 2 than at point 1, what would be the relation of flow speed at the two po

Which of the following most clearly describes the cotton gin? It was designed for use only on large plantations. o It was given a clear copyright. It was a labo

which sentence below shows correct use of em dashes ? A) she will one day inherit this kingdom-the one on the map-to rule as her own B) she will one-day inherit

what the slope (0,-1) and (2,-5)