A northbound train left at 9 a. m. Two hours later, a southbound train left the station. At four o'clock the two trains were 429 miles apart. Find the rate of each train if the northbound train traveled 15 miles per hour faster than the southbound train.

R=58 MPH FOR 4 HOURS FOR THE SOUTH BOUND TRAIN

THUS THE NORTH BOUND TRAIN WAS TRAVELING

58-15=43 MPH FOR 6 HOURS

PROOF

490=43*6+58*4

490=258+232

490=490

Step-by-step explanation:

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

b. b < 1 might be the correct answer