Respuesta :
Answer:
20% of the students in Dave's class don't have a cell phone.
Step-by-step explanation:
Multiply 4/5 by 100:
[tex]\frac{4}{5}*100[/tex]
Cross simplify 4/5 and 100 to change 5 to 1 and 100 to 20:
[tex]\frac{4}{1}*20[/tex]
Once you multiply, you should get 80%. 80% is the number of students that have a cell phone. To get the number of students who don't have a cell phone, we have to subtract 100% by 80%:
100%
-80%
--------
20%
➳ Hope this helps!
➳ CloutAnswers
If you multiply 4/5* 20/20 you get 80/100 so 80% of students do have a cell phone so 20% of students do not have a cell phone.