Question

an object is moving at a speed of 4 kilometers per week. express this speed in centimeters per day. round your answer to the nearest whole number.
*note: you must use these exact conversion factors to get this question right.

distance / length	time
1 yard (yd) = 3 feet (ft)	1 hour (hr) = 60 minutes (min)
1 mile (mi) = 5280 feet (ft)	1 day (day) = 24 hours (hr)
1 meter (m) = 100 centimeters (cm)	1 week (week) = 7 days (days)
1 kilometer (km) = 1000 meters (m)	1 month (month) = 30 days (days)
1 inch (in) = 2.54 centimeters (cm)	1 year (year) = 365 days (days)

|1 foot (ft) = 0.305 meters (m)|
|1 mile (mi) = 1.609 kilometers (km)|

Explanation:

Step1: Convert kilometers to centimeters

We know that 1 km = 1000 m and 1 m = 100 cm. So 1 km=1000×100 = 100000 cm. Then 4 km = 4×100000=400000 cm.

Step2: Convert weeks to days

Since 1 week = 7 days.

Step3: Calculate the speed in cm per day

The speed is 4 km per week. Substituting the converted values, the speed in cm per day is $\frac{400000}{7}\approx57143$ cm per day.

Answer:

57143