Answer:
C = 
Step-by-step explanation:
given A varies directly as B and inversely as C then the equation relating them is
A = 
← k is the constant of variation
to find k use the condition A = 6 , B = 10 , C = 15 , then
6 = 
( multiply both sides by 15 )
90 = 10k ( divide both sides by 10 )
9 = k
A = 
← equation of variation
when A = 92 and B = 107 , then
92 = 
( multiply both sides by C )
92C = 963 ( divide both sides by 92 )
C =
Answer:
4,39299
Step-by-step explanation:
I multiplied 3 x all the numbers in 6,973, then 6 x all the numbers (I added a 0 before I multiplied, then added both the products and got my answer.
Answer:
b
Step-by-step explanation:
Surface of the earth =3959×3.14
=12,437.565
if 20%is suitable so we multiply it by the surface
12,437.565×0.2=2,487.513 per people
2,487.513/7,700,00,00
So I think it will be the closest to b
Answer:
300 books
Step-by-step explanation:
10 x 6 = 1 min
50 x 6 = 300
