Question

Find each unit price and decide which is the better buy. Assume that we are comparing different sizes of the same brand.Crackers:$1.19 for 12 ounces$1.59 for 16 ouncesAfter finding this information out decide which is a better buy

Answer 1

To find the unit price, we need to divide the price by the amount of ounces:

$1.19 for 12 ounces:

`(1.19)/(12)=(119)/(1200)\approx0.099166`

$1.59 for 16 ounces:

`(1.59)/(16)=(159)/(1600)=0.099375`

We can see that in the 4º decimal place, the first option has a 1 and the second option has a 3. Thus, is better to buy the second option

To 3 decimal places:

First option: $0.099 per ounce

Second option: $0.099 per ounce