Answer:
y = 6
Step-by-step explanation:
Given that y varies directly with x then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition y = 3 when x = 9, then
k =
=
=
, thus
y =
x ← equation of variation
When x = 18, then
y =
× 18 =
= 6
Hello from MrBillDoesMath!
Answer:
2(x+8) = 40
Discussion:
Rewrite the original Question as
"
Twice the (sum of a number and 8) is 40" =>
2 ( x + 8 ) = 40 =>
2 (x+8) = 40
which is the third bullet point from the top
Thank you,
MrB
Answer:
c
Step-by-step explanation:
3/4
Answer:
-3
Step-by-step explanation:
It would just be -12+9=-3.