Question

Find the unit rate to determine the better buy:16 oz jar of peanut butter for $2.49 or 64 oz jar of peanut butter for $6.99Round to the nearest cent

Answer 1

Answer:

64 oz jar of peanut butter for $6.99

Explanation:

First, determine the unit rates for the two:

$\begin{gathered} \text{16 oz jar of peanut butter for \ 2}.49 \\ Unit\text{ Rate=}\frac{\text{\ }2.49}{16\text{ oz}} \\ \approx\ 0.16\text{ per oz} \end{gathered}$

Similarly:

$\begin{gathered} \text{64 oz jar of peanut butter for \ }6.99 \\ Unit\text{ Rate=}\frac{\text{\ }6.99}{64\text{ oz}} \\ \approx\ 0.11\text{ per oz} \end{gathered}$$0.11<0.16$

Therefore, the better buy is a 64 oz jar of peanut butter for $6.99.