Samyukta
Samyukta Samyukta
  • 24-10-2021
  • Mathematics
contestada

Find k if X=2 and y=1 is a solution of 2x-8y+k/2=0​

Respuesta :

lucifershrestha
lucifershrestha lucifershrestha
  • 24-10-2021

Answer:

k=2

Step-by-step explanation:

2x-8y+k/2=0

puting the values of x and y

2*2-8*1+k/2=0

4-8+k/2=0

-4+k/2=0

k/2=4

sing changes if side changed

k=4/2

k=2

Answer Link
rayzn012
rayzn012 rayzn012
  • 24-10-2021

We first substituted the X and Y in the equation, so 2 instead of X and 1 instead of Y.

Then I moved the K to make it the subject of the equation by algebra which gave me a -K, but I want k not negative k so I multiplied everything by -1 because, -1 × -1= +1 so K=2.

Ver imagen rayzn012
Answer Link

Otras preguntas

one out of 44 high school ball player plays college ball. one out of 23 college players plays professional ball. What fraction of high school player plays profe
What Is the Myocardium?
What Does "Bun in the Oven" Mean?
I'm making a great dodecahedron for geometry and I'm failing at putting it together! Any tips?!
6010 males did a survey and 59.7% choose vanilla how many choose chocolate
Circumference of a circle is 40 π cm. A quarter of the circle represents the developer layer genuine coupe. Calculate the surface compartment.
Snow was quickly piling up on the ground. Wind howled through the trees. Karen wrapped a planket around her and sighed as she watched the snow through her bedro
What are Gender Neutral Pronouns?
What Is the State Motto of Nevada?
i have to analyze a paragraph then circle the verbs an underline the adjectives but um lost