Answer: the answer is D
Step-by-step explanation:
Answer:
Here c represents the total number of children in choir.
As per the statement:
Total number of boys in choir = 12
It is also given that: Three sevenths of a children's choir are boys.
⇒ Total number of boys = 
or
By cross multiply we have;
84 = 3c
Divide both sides by 3 we have;
c = 28
Therefore, the total number of children in choir is 28 children
9514 1404 393
Answer:
12.0 cm
Step-by-step explanation:
Use the formula for the volume of a cylinder. Fill in the given values and solve for the height.
V = πr^2h
1846 cm^3 = π(7 cm)^2·h
h = 1846/(49π) cm ≈ 12.0 cm . . . . . . divide by the coefficient of h
The height of the can is about 12.0 cm.
Just find the base area then multiply it by the height.
so here for the base area we can divide it in 2 parts 6x6 + 2x1
which the total is 38
then multiply 38 by 1, which is the height, so it's 38
Answer:
(a) 1km
(b)80 fence panels
Step-by-step explanation:
(a) perimeter = 300+300= 600
200+200= + 400
=1000m
1km = 1000m
(b).
1panel = 2.5 m 1× 200÷2.5 = 80
=200m
