Monday, November 30th

posted by Justyna

Topic: Comparing Prices Using Unit Prices

Today, we looked at page 237 in your text book, and looked over example two.

We were assigned page 239 numbers one and two

Tip: When calculating price per unit, it is ALWAYS ---> cost over quantity

Example: Milk was being sold at these sizes --> $3.98 for 4L Milk; $2.69 for 2L Milk; $1.65 for

1L Milk

Question: Which would be the best deal?

Solution: Remember, cost over quantity! First deal: 3.98/4 = .995 per litre

Second deal: 2.69/2 = 1.345 per litre

Third Deal: 1.65/1 = 1.65 per litre

* / means to divide *

This shows that the first deal of $3.98 for 4L would be the best because it is the cheapest per litre of milk.