30-[(9x2)-(3x4)]
30-[18-(3x4)]
30-(18-12)
30-6
24
pls give me thank on my Question
Since the area of a triangle is 1/2 base times height it would be 50
I would go with D. Hope that helps :)
Answer:
240 students
Step-by-step explanation:
Grade 7 : Grade 8 = 5 : 3
Number of seventh grade students = 5x
Number of Eighth grade students = 3x
3x = 90
x = 90÷3
x = 30
Total students = 5x + 3x = 8x = 8 * 30 = 240
