Question

3 1⁄2 kilometers = hectometers

Answer 1

`\large\boxed{3(1)/(2)\ kilometers=35\ hectometers}`

Explanation:

`PREFIXES\\\\mega\ (M)=10^6\\\\kilo\ (k)=10^3\\\\hecto\ (h)=10^2\\\\deko\ (da)=10\\\\decy\ (d)=10^(-1)=0.01\\\\centi\ (c)=10^(-2)=0.01\\\\mili\ (m)=10^(-3)=0.001\\\\mikro\ (\mu)=10^(-6)=0.000001`

`3(1)/(2)=3.5\\\\1\ kilometers=10\ hectometers\ (1\ km=10\ hm)\\\\3(1)/(2)\ km=3.5\ km=3.5\cdot10\ hm=35\ hm`

Answer 2

35 hectometers

Explanation:

1 kilometer=10 hectometers

3 1/2=7/2

7/2*10=35