There are 90 girls and 60 boys in the sixth grade at a middle school. Of these students, 9 girls and 3 boys write left-handed. What percentage of the sixth graders at this middle school write left-handed?
A. 10 %
B. 8 %
C. 5 %
D. 15 %
The answer is B
12*100=1200
150*x=150x
1200/150x=8
This means that your answer is probably B.
Hopefully, this helped you :)
Yep-
So, 150 people are in sixth grade at a middle school.
Out of 150 people, 12 of them are left-handed and 138 are right-handed.
What do you do??
You have to find out how to set up your equation.
Cross multiply.
Divide what you get after the multiplying.
You get your answer and check if it was correct.
So how do you think that you have to set up this equation??
It sure was right
To find the percentage of sixth graders who write left-handed, we need to calculate the total number of left-handed students and then divide it by the total number of sixth graders.
The number of left-handed girls is given as 9, and the number of left-handed boys is given as 3.
So, the total number of left-handed students is 9 + 3 = 12.
The total number of sixth graders is 90 girls + 60 boys = 150 students.
To find the percentage, we divide the number of left-handed students by the total number of sixth graders and then multiply by 100 to get the percentage.
(12 / 150) * 100 = 8%
Therefore, the correct answer is B. 8%.