Apolice officer records the speeds of vehicles on a road. what percent of the vehicles were traveling between 46 and 50 miles per hour? speed (miles per hour) & number of vehicles 36 - 40 2 41 - 45 14 46 - 50 18 51 - 55 12 56 - 60 4

 The answer is 36%.

Step-by-step explanation:  Given that a police officer records the speeds of vehicles on a road as follows

speed(miles per hour)     36-40     41-45     46-50      51-55       56-60

No. of vehicles                    2             14          18              12            4  

Number of vehicles travelling at a speed of 46 to 50 miles per hour = 18

and total number of vehicles = 2 + 14 + 18 + 12 + 4 = 50.

Therefore, the percentage of the vehicles travelling at a speed of 46 to 50 miles per hour is given by

Thus, the answer is 36%.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)