Question

Lily's car has a fuel efficiency of 8liters per 100 kilometers. What is the fuel efficiency of Lily's car in kilometers per liter?

Answer 1

Using Algebra I have concluded that the answer is 12.5 kilometers per liter. :D

First set up your equation

`(8)/(100) = (1)/(x) \\\\</p><p>Next multiply by x </p><p>((8)/(100))x = ((1)/(x))x \\\\`

`((8x)/(100)) = 1\\\\`

Then multiply by 100

`((8x)/(100)) 100 = (1) 100`

`8x = 100\\\\</p><p>Finally divide by 8</p><p>(8x)/(8) =  (100)/(8)`

`x = 12.5`

Hope this helps!