Answer:
C. 4 over 3
Step-by-step explanation:
A varies jointly as B and C.
Therefore, A = kBC, from the original formula y = kxz
Given:
A = 40
B = 6
C = 5
constant of variation (k) = ?
Solution:
[tex]a = kbc[/tex]
[tex]40 = k(6)(5)[/tex]
[tex]40 = k(30)[/tex]
*divide 30 on both sides so that we can find the value of k (constant of variation)*
[tex] \frac{40}{30} = \frac{k(30)}{30} [/tex]
[tex] \frac{40}{30} = k[/tex]
*the lowest term of 40/30 is 4/3*
[tex] \frac{4}{3} = k[/tex]
The answer is C. 4 over 3
