-15
Average acceleration = (change in speed) divided by (time interval)A = (40 - 25) / 15 = 15/15 = 1 meter/sec2
It is: 15+25 = 40
Thw two numbers are 25 and 15 because 25+15 = 40 and 25-15 = 10
Average = (9 + 31)/2 = 40/2 = 20
-15
Average acceleration = (change in speed) divided by (time interval)A = (40 - 25) / 15 = 15/15 = 1 meter/sec2
The interval is [15, 40].
65
55
16/40 + 15/40 = 31/40
It is: 15+25 = 40
Thw two numbers are 25 and 15 because 25+15 = 40 and 25-15 = 10
15 is 40% less than 25.
Average = (9 + 31)/2 = 40/2 = 20
25
15 is 40% less than 25.