Answer:
= 8 mp /h
Step-by-step explanation:
Average speed=total distance/total time
=20/2.5
=8 mp/h
Eric took 20 hours to do the job alone.
<u>Step-by-step explanation</u>:
<u>Given </u>:
- Total work = 75 packages
- Joe took 5 hours to complete the total work.
The amount of work Joe alone can do per hour = 75/5 = 15 packages.
The amount of work Joe and Eric together do per hour = 75/4 = 18.75
The amount of work Eric alone can do per hour = 18.75 - 15 = 3.75
The time Eric took to complete the entire work = 75 / 3.75 = 20 hours.
0.9 = 90%.
<span>0.9 in percent
= 0.9 x 100%
= 90%</span>
