There are 70 students in the school band. 40% of them are sixth graders, 20% are seventh graders, and the rest are eighth graders. What percentage of the band members are eighth graders?

40%

Step-by-step explanation:

40% of 70 is 28

20% of 70 is 14

so there are 28 8th graders 28 is 40% of 70

Also, #SPEEDRUN

40%

Step-by-step explanation:

lets just forget the number 70 because it wont change anything in this story problem

there must be the value 100% which equals the 70 students

the problem told that 40% of them are sixth graders while 20% are seventh and the rest are eighth so

100-(40+20)=40

if you didnt get it here another way:

40%+20%=60% which is the percentage of seventh and sixth graders together

the rest of the 100% is the eighth so you should subtract the 60% from the 100% which is "40%"

8

step-by-step explanation: