A beetle was running along a number line...The the bug ran from 78 to 13. What distance did it cover?If it took the bug 5 seconds, what was its average speed?
The average speed of the beetle was 12.6 numbers a second.
Explanation:
To calculate speed, we must know the distance covered and the time it took to cover that distance. Here the beetle went from 78 to 13 on the number line in a period of 5 seconds.
The distance covered = 78 - 13 = 63 numbers. Time taken = 5 seconds.
Speed is given by the formula; Speed = [tex]\frac{distance travelled}{time taken}[/tex]. The unit for this problem is numbers per second as we do not know how long each number on the number line is.
The average speed of the beetle = [tex]\frac{63}{5}[/tex] = 12.6 number per second.
