Answer:
i think it's 9/55
Step-by-step explanation:
S = 6*6 = 36 square sentimeters
D {(1,-4),(-2,-4),(8,3),(10,3)}
Answer:
C = 2√(Aπ).
Step-by-step explanation:
The area A = π r^2 where r = radius
and the circumference = 2 π r.
From the formula for the area r = √(A / π)
So the circumference is found by substituting in C = 2 π r for r:
C = 2 π √(A / π)
C = 2√(Aπ).
Let the number of girls=4x
then number of boys=7x
7x-4x=15
3x=15
x=15/3=5
boys=5*7=35
girls=4*5=20
number of students=35+20=55