cooldoge666
Answered

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If y = kx, what is the value of k if y = 20 and x = 0.4?

A)5
B)8
C)9.6
D)50

Sagot :

[tex]\\ \sf\longmapsto y=kx[/tex]

[tex]\\ \sf\longmapsto k=\dfrac{y}{x}[/tex]

  • put values

[tex]\\ \sf\longmapsto k=\dfrac{20}{0.4}[/tex]

[tex]\\ \sf\longmapsto k=50[/tex]

DᴀʀᴋPᴀʀᴀᴅᴏx

Given expression :

  • y = kx

let's plug the value of x as 0.4 and y as 20 in the given equation :

  • 20 = 0.4k

  • k = 20 ÷ 0.4

  • k = 50

correct choice - D. 50

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