Answer:
see explanation
Step-by-step explanation:
(a)
Given y is directly proportional to x then the equation relating them is
y = kx ← k is the constant of proportion
To find k use the condition when x = 3, y = 18 , then
18 = 3k ( divide both sides by 3 )
6 = k
y = 6x ← equation of proportion
(b)
(i)
when x = 12 , then
y = 6 × 12 = 72
(ii)
when y = 42
42 = 6x ( divide both sides by 6 )
7 = x
Answer:
a=-1/2b+c+-7/2
a= -1/2b+1/6c+-13/3
a= -1/2b+-1/2c-5
I really hope that my answer is right
The answer is: No
Becuase the equation itself is not correct. The equation is c = 2p.
Good Luck!
Answer:
D
Step-by-step explanation:
-2 is the y intercept of the first system
