Lauren D. answered • 04/23/21
Fun and Committed K-6 Tutor Specializing in STEM Fields
Hi Emily!
The first thing we're going to want to do is turn the Kilometers into Meters. We do this by multiplying 12 (total kilometers) by 1000 (there are 1000 meters in 1 kilometer).
12*1000 = 12,000
Next, we'll find out how many meters she runs in a day on the track. We know that she runs 10 laps a day and each lap is 400 meters, so we multiply 400 (meters per lap) * 10 (total laps) which equals 4,000 meters a day.
400*10 = 4,000
She wants to know how many days it will take her to run 12,000 meters (12 Kilometers) and we know that she runs 4,000 meters a day. In order to find the number of days, we'll divide the total meter goal (12,000) by the daily total number of meters (4,000).
12,000 / 4,000 = 3
It will take Kali 3 days to run 12 Kilometers at her daily rate of 4,000 meters!
