An 18 1/2 fluid ounces bottle of water costs $3.79. What is the unit rate? Round to the nearest cent.

The rate would be $3.79/18.5 per ounce

= $..... / ounce

To find the unit rate, we need to divide the total cost by the number of fluid ounces in the bottle.

Total cost: $3.79
Number of fluid ounces: 18.5

Unit rate = Total cost / Number of fluid ounces

Unit rate = $3.79 / 18.5

Using a calculator, the unit rate is approximately $0.21 per fluid ounce. (Round to the nearest cent)

Therefore, the unit rate for the 18 1/2 fluid ounces bottle of water is approximately $0.21 per fluid ounce.

To find the unit rate, we need to determine the cost per fluid ounce.

First, let's convert 18 1/2 fluid ounces to decimal form:
18 1/2 = 18 + 1/2 = 18.5

Next, we divide the total cost ($3.79) by the total number of fluid ounces (18.5):
$3.79 รท 18.5 = $0.20508 (Remember to use a calculator for the precise result)

Now, we round this to the nearest cent, which is two decimal places:
$0.20508 rounds to $0.21

Therefore, the unit rate for this water bottle is $0.21 per fluid ounce.