Respuesta :
since 50% are grade 6 and 0.3 from 5th grade these equal 8/10 so the fraction of participants from grade 7 would be 2/10
Answer:
Here's how to solve the problem
Step-by-step explanation:
50% of participants are in 6th grade.
100% - 50% = 50
0.3, when converted to percentage form is 30%
50% - 30% = 20%
This remaining 20% is how many participants, out of the whole, are in the 7th grade
20% = 0.2 = 2/10 = 20/100