Answer:
The equation will be x=3l and the value of l is 5 when x=15
Step-by-step explanation:
Proportion is defined as the change in one quantity cause change in other quantity.
Writing x varies directly at l
x∝l
Removing the proportionality symbol introduces a constant of proportionality
[tex]x=kl[/tex]
x=6 when I=2, Putting values
[tex]6 = k(2)\\k = \frac{6}{2}\\k = 3[/tex]
The equation will become
[tex]x = 3l[/tex]
Now to find the value of l when x=15, putting x=15 in equation
[tex]15 = 3l\\\frac{15}{3} = \frac{3l}{3}\\l =5[/tex]
Hence,
The equation will be x=3l and the value of l is 5 when x=15
