Dean walked from the library to the mall. For the first 12 minutes, he walked at a speed of 80 m/min, but then he
slowed his speed to 68 m/min for next 7 minutes. If he was still
130 m away from the mall, what was the distance between the
library and the mall?

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

2

step-by-2step explanation:

teleportation

step-by-step explanation: