Answer:
The value of expression for k = 15 is [tex]\frac{13}{5}[/tex]
Step-by-step explanation:
Given expression as :
[tex]\frac{2}{5}[/tex] k - 3 [tex]\frac{2}{5}[/tex]
Or, [tex]\frac{2}{5}[/tex] k - 3 - [tex]\frac{2}{5}[/tex]
Or, [tex]\frac{2}{5}[/tex] k - [tex]\frac{17}{5}[/tex]
Now, for k = 15
The expression is
[tex]\frac{2}{5}[/tex] × 15 - [tex]\frac{17}{5}[/tex]
Or, [tex]\frac{30}{5}[/tex] - [tex]\frac{17}{5}[/tex]
Or, 6 - [tex]\frac{17}{5}[/tex]
Or, [tex]\frac{30-17}{5}[/tex]
So, [tex]\frac{13}{5}[/tex]
Hence The value of expression for k = 15 is [tex]\frac{13}{5}[/tex] Answer