Question

A particular beach is eroding at a rate of 4 centimeters per year. A realtor converts this rate to millimeters per day. Which expression, when evaluated, results in the correct units and numerical value?

Answer 1

`(4 cm)/(1 year)* (10mm)/(1 cm) * (1year)/(365 days)`

Explanation:

A particular beach is eroding at a rate of 4 centimeters per year.

So, if we want to calculate it as per day we will do:

The expressions are not given, but the conversion rates are standard, so there can be only one answer.

The correct answer is =

`(4 cm)/(1 year)* (10mm)/(1 cm) * (1year)/(365 days)`

= 0.109 mm per day