Bob and jack enter a 1000 km bicycle race. bob cycles 4 km/h faster than jack, but his bicycle gets a flat tire, which takes 30 minutes to repair. if both of them finish the race in a tie, then how fast was each boy cycling?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling