Convert a speed of 675 cm/s to units of inches per minutes

Answer 1

Use factor labeling to cancel units and put the correct numbers into the conversion factors so that each multiplication is by a special type of "1" so the units change, but the measurement doesn't. Ex. 2.54 cm = 1 inch (exactly, by the way), so this can be used as 1 in/2.54 cm or 2.54 cm/1inch conversion factors:

675 cm/s * (1 inch/2.54cm) *(60s/1min) = 675*60/2.54 inches/minute