Find the Best Buy for the item

Question

veget oil

size      price

16oz     $1.56

32 oz    $2.64

64oz.    $3.74

128 oz  $7.72

Answer 1

Chi,

The point is to get a way to compare these prices.  The way to do it is to get the cost per oz. for each situation.  So a unit rate of cost per oz.  takes the cost and divides it by the number of oz.  $1.56/16 oz. gives a unit cost of $.0975/oz.  Do this with all situations, and find the one which has the least cost/oz.

Does this make sense?  If you have more questions, just email me.

Mary