Answer:
A / (1 +√5) = A (1 - √5) / (1 - 5) = -A (1 - √5) / 4
Multiply numerator and denominator by (1 - √5)
Step-by-step explanation:
Hope it helps you in your learning process.
Answer:
y =
x
Step-by-step explanation:
given y varies directly as x, the the equation relating them is
y = kx ← k is the constant of variation
to find k use the given condition y = 10 when x = 6, hence
k =
=
= 
y =
x ← is the equation
The second image is 3 times the size of the first one so 7 times three gives you 21 =m