a plane travels between at speed of 915km/h. if the trip takes 2 hours, calculate the distance between the two cities

x = 4 v

x = (v+15)(4-48/60)

x = 4•v

x = (v+15)•(4-48/60)

4v-x = 0

192v-60x = -2880

v = 60

x = 240

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .