Answer:
Ella's grade has more boys than Minh's grade. = False
Minh's grade has more boys than Ella's grade. = True
Ella's grade has 15 boys = True
Minh's grade has 8 boys = False
Explanation:
Each grade has a total of 20 girls.
For Ella's grade
The ratio of boys to girls in Ella's grade is 3 to 4. = 3:4
3 + 4 = 7
The number of students is represented as x
Hence,
4/7 × x = 20
4x = 20 × 7
4x = 140
x = 140/4
x = 35 students
The number of boys is
3/7 × 35 = 15 students.
The ratio of boys to girls in Minh's grade is 4 to 5 = 4:5
4 + 5 = 9
The number of students is represented as x
Hence,
5/9 × x = 20
5x= 20 × 9
5x = 180
x = 180/5
x = 36 students
The number of boys is
4/9 × 36 = 16 students.
Choose True or False for each statement below.
Ella's grade has more boys than Minh's grade. = False
Minh's grade has more boys than Ella's grade. = True
Ella's grade has 15 boys = True
Minh's grade has 8 boys = False