Looking for a tutor to help me with math

Question

Kelly runs 10 laps around a track each day each lap around the track is 400 meters how many days will it take kelly to run a total of 12 kilometers

Answer 1

hi Eren. Think about it like this:

She runs 4,000 meters daily. (400 meter track x 10 laps)

that equals 4 kilometers. (1 kilometer for every 1000 meters)

so it will take her 3 days to run 12 kilometers.

or think like this

she runs 4000 meters daily

12K=12000 meters

so 4000meters/day times (x days) = 12000 or 4000x = 12000 same as 12000/4000 = x=3

Now how fast would she have to run if she spent exactly the same amount of time on the track to run 12 miles?-