This scale can be used to change between kilometres and miles 30
40
so
miles
9 10
0 10 20
kilometres
20
30
40
50
60
70
RO
(a) Use the scale to change 20 kilometres to miles.
13 miles
Here is an approximate rule to change from kilometres to miles.
Divide the distance in kilometres by 10 and then multiply by 6
(6) Use this approximate rule to change 20 kilometres to miles.
miles
(2)
(c) Compare your answer to part (b) with your answer to part (a).

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.