Eight students ran a 180-meter course during their physical education class. The chart shows the time it took each student to complete the course. 180-Meter Course Completion Times Student Time (s) 1 30 2 32 3 33 4 35 5 37 6 38 7 40 8 45 How much faster was the average speed for Student 1 than the average speed

Step-by-step explanation:

Speed of student 1 = 180/30= 6 m/sec

speed of student 2= 180/32= 5.62 m/sec

speed of student 3= 180/33= 5.45 m/sec

speed of student 4= 180/35= 5.14 m/sec

speed of student 5= 180/37= 4.86 m/sec

speed of student 6= 180/38= 4.73 m/sec

speed of student 7= 180/40= 4.5 m/sec

speed of student 8= 180/32= 4 m/sec

average speed is = (6+5.62+5.45+5.14+4.86+4.73+4.5+4)/8

hence, average speed is= 5.04

hence, the average speed of student 1 = 6m/sec

how much faster is average speed of student 1 than average speed= 6- 5.04 = 0.96

hence, average speed of student 1 is 0.96 m/sec more thanthe average speed.

89

step-by-step explanation:

ratio is 2 : 9

the answer is three

13.5 : 3