Sasa, June and Don are waitresses. When they compare their tips at the end of their shift they notice that Juice earned 30c for every 40c that Sandy earned while Juice earned 20c for every 25c that Dido earned. How much would Dido earn if Sandy earns $36?
j/s = 30/40
j/d = 20/25
d/s = d/j * j/s = (25/20)(30/40) = 15/16
15/16 * 36 = $33.75