Answer:
A) Grade 7 had the most students at the dance.
B) There were 120 7th grade students.
C) There were 30 more grade 9 students than grade 8 students.
Step-by-step explanation:
Total students = 300
40% of the total students belong to grade 7.
[tex]\sf 40 \% = \dfrac{40}{100}=0.4[/tex]
To find the number of students from grade 7, multiply 0.4 by the total students.
Number of students from grade 7 = 0.4 * 300
= 120
To find the number of students from grade 8, multiply 0.25 by the total number of students.
[tex]\sf 25 \% = \dfrac{25}{100}=0.25[/tex]
Number of students from grade 8 = 0.25 * 300
= 75
To find the number of students from grade 9, multiply 0.35 by the total students.
[tex]\sf 35 \% = \dfrac{35}{100}=0.35[/tex]
Number of students from grade 9 = 0.35 *300
= 105
A) Grade 7 had the most students at the dance.
B) There were 120 7th grade students.
C) 105 - 75 = 30
There were 30 more grade 9 students than grade 8 students.
