450
If he used 1/3 of the stock bottle, then you have
150=1/3x
Now, you multiply both sides by 3, which gives you
450=x
So, originally there were 450 bottles in the stock bottle
x = -8
Step-by-step explanation:
Step 1: Subtract 1 from both sides

Divide both sides of the equation by -10

Answer:
k=0,5/4(fraction)
Step-by-step explanation:
I hope this helps! :) You need to divide both sides.