Answer:
P * 300000 = 30
.01%
Step-by-step explanation:
Let P equal the percent. Of means multiply and is means equals
We need to make sure the units are the same. I will convert km to cm
3 km *1000m/1km * 100cm/1m =300000 cm
Now we can write the equation
P * 300000 = 30
Divide each side by 300000
P 300000/300000 = 30/300000
P =.0001
Changing this from decimal to percent
P = .0001*100 = .01 %
