Answer:
47 cups of flour and 23 eggs
Step-by-step explanation:
the answer is 47 cups of flour and 23 eggs
To put a certain amount of space in between
Answer:
y = 9
Step-by-step explanation:
Given y is directly proportional to (x - 1)² then the equation relating them is
y = k(x - 1)² ← k is the constant of proportionality
To find k use the condition x = 5 when y = 4
k =
=
=
=
, thus
y =
(x - 1)² ← equation of proportion
When x = 7, then
y =
× 6² =
× 36 = 9
Answer:
Step-by-step explanation:
y ∝ x^2
Introducing the proportionality constant, we have
y = kx^2
Given : y= 18 when x = 3
substitute the given values in order to get the constant
i.e 18 = k x 3^2
18 = 9k
k = 2
therefore the formula connecting x and y
⇒ y = 2x^2
To find y if x is 4, just substitute x = 4 into the formula connecting x and y
i.e y = 2 x 4^2
= 2 x 16
= 32