Converting significant figures

Question

How do you convert 26,547 inches to miles.

Answer 1

There are 63360 inches in a mile, so you would set up the equation as:

26,547 inches x 1 mile =

63360 inches

Divide 26,547 inches by 63,360 inches. The inches values cancel each other out, so you're left with the number of miles.

26,547 inches x 1 mile = 0.418986 miles

63360 inches

Round to two significant figures to get 0.42 miles

Answer 2

1 mile = 4(440) yards = 1760 yards = 3(1760) feet = 5,280 feet

1 mile is 4 times the track around a football field. one time around is 440 yards

1 foot = 12 inches

1 mile = 5,280(12) inches

26547 miles = 26547(5,280)(12) inches= 26547(63360) inches = 1682017920=

1,682,017,920 inches = 1.682017920 x 10^9 = about 1.7 x 10^9 inches