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 x 10 mm / 1 cm x 1 year / 365 days

Answer 2

The correct unit and numerical value is 0,1096 mm per day

Explanation:

Rate of eroding= 4 cm per year

To convert this rate to millimeters (mm) per day we have to make the following steps:

Considering this conversion

1 cm= 10 mm

1 year=365 days

The rate of eroding in mm per day will be:

x= (4 cm\ year) *(10 mm\ cm)*(1 year\365 day)

x=40 mm/365 day

x=0,1096 mm per day