Question

What is the unit price for a 14.2- ounce bottle that costs $3.98

Answer 1

28.028 cents per ounce
= 28.03 cents per ounce rounded to 2 decimal places
= 28.0 cents per ounce rounded to 1 decimal place
= 28 cents per ounce rounded to nearest cent

Explanation:

`\texttt{{Unit Price} = \ensuremath{\frac{\texttt{Total Price}}{\texttt{Quantity}}} }`

Here
Total Price = $3.98
Quantity = 14.2 ounce

`\texttt{{Unit\;Price}\;=\;\ensuremath{\frac{\texttt{\$3.98}}{\texttt{14.2 oz}}} }`

Convert dollars in the numerator to cents for easier calculation

Since one dollar = 100 cents.
$3.98 = 3.98 x 100 = 398¢

Divide 398 by 14.2 to get

`\ensuremath{\frac{\texttt{398}}{\texttt{14.2}}} } = \texttt{28.028 cents per ounce}`

which, you can round off as necessary
Rounding to 2 decimal places it becomes 28.03 cents per ounce
Rounding to 1 decimal place it becomes 28.0 cents per ounce
Rounding to nearest cent it becomes 28 cents per ounce