Exercise 1 Page 93

We want to decide which bottle of shampoo costs less per ounce. To do so , we will compare the rates to find which is greater. Let's take a look at the given table of values.

Bottle	Price
12oz	$2.59
16oz	$ 3.19

A unit price is a unit rate that gives the price of one item. In our case, one ounce.

We need to find equivalent rates with denominators of 1 to find each of the unit prices. Let's start with the first rate!

2.59/12

ReduceFrac

a/b=.a / 12./.b / 12.

2.59/ 12/12/ 12

CalcQuot

Calculate quotient

0.21583/1

Now let's find the unit rate for the second rate.

3.19/16

ReduceFrac

a/b=.a / 16./.b / 16.

3.19/ 16/16/ 16

CalcQuot

Calculate quotient

0.199375/1

Finally, we will compare the rates. cc First Rate & Second Rate [0.5em] 2.59/12=0.21583/1 & 3.19/16=0.199375/1 Because 0.199375 is less than 0.21583, we can say that the 16 oz shampoo bottle costs less per ounce.