For a science experientment a teacher needed 80 milliliters of vinegar for each pupil. There were 30 pupils in the class. vinegar comes in 1000 milliliters bottles. How many bottles of vinegar were needed?

3

Step-by-step explanation:

The total quantity of vinegar needed is ...

(80 mL/student) (30 students) = (80·30) mL = 2400 mL

This is the quantity in ...

(2400 mL) / (1000 mL/bottle) = (2400/1000) bottles = 2.4 bottles

2 bottles is not enough. 3 bottles were needed.