Question

Convert 86000 cm to km. Show all of your work.

Answer 1

100 cm = 1 m => 1 cm = 1/100 m
so, 86000 cm = 86000 * (1/100) m = 86000/100 m = 860 m
now, 1000 m = 1 km => 1 m = 1/1000 km
so, 860 m = 860 * (1/1000) km = 860/1000 km = 0.86 km

so, 86000 cm = 0.86 km

Answer 2

Hence, 86000 cm are 0.86 km.

86000 divided by 100000!

Answer 3

1cm = 10 ^ -2 m
1km = 10 ^ 3 m
difference is 10 ^ 5
since the unit is getting bigger the number has to be smaller
-> devide by the difference
86000 / 10^5 = 0.86 (or 8.6 * 10^ -1)