You need to buy vintage glass bottles for your homemade organic kombucha business...

Question

You need to buy vintage glass bottles for your homemade organic kombucha business. You have identified two suppliers: “Hipster Fantastic” charges £12.50 per bottle and a flat delivery charge of £15. “SCOBY Universe” offers free delivery and charges £15 for each bottle. For what sizes of order, i.e. numbers of bottles bought and delivered, will “SCOBY Universe” be cheaper than “Hipster Fantastic”?

Answer 1

15 + 12.5X = 15X

2.5X = 15

X = 15/2.5 = 6 bottles bought will cost the same with either Hipster or SCOBY

SCOBY will be cheaper if you buy less than 6 bottles

5 bottles will cost 75 with SCOBY and cost 77.50 with Hipster

4 bottles cost 60 with SCOBY and cost 65 with Hipster

3 bottles cost 45 with SCOBY and cost 52.50 with Hipster

2 bottles cost 30 with SCOBY and cost 40 with Hipster

1 bottle cost 15 with SCOBY and cost 27.50 with Hipster