Question

At the grocery store you can buy a whole chicken that weighs 4 pounds for $3.88. You can also buy a package of chicken drumsticks that weighs 3 pounds for $3.06. Use the unit prices to decide which is a better buy.

Answer 1

To find unit rate, you should identify your unit, in this case being pounds, and divide it by itself. Then, you should divide whatever it is being compared to by the same number.

4=3.88
/4 /4
1=0.97

3=3.06
/3 /3
1=1.02

Using the math above, we can see that 4 pounds for $3.88 is a better deal than 3 pounds for $3.06.

You could have also solved this by estimating. You can see that you can get 4 pounds for under 4 dollars, but 3 pounds is more than 3 dollars, meaning that the 4 for under 4 is a better deal.

Answer 2

Whole chicken unit price= $0.97
Chicken drumstick unit price= $1.02
Therefore the whole chicken is the better buy