Calculate the number of kilometers there are in 1.549 micrometers

1.549 micrometers = 1*10^- 6  meters.

1.6 * 10^-6 meters * 1  km/1000 m = 1.6 * 10^-9 km

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

do your own work and don"t cheat.

step-by-step explanation: