They would need 38 pounds of grapes for 16 cartons of raisins
I think it is the last one.
Answer:
x = 4
Step-by-step explanation:
y = kx²
NOTE: k is constant for proportionality
putting values for x and y
if x is 2
and y is 12
12 = k(2)²
12 = k4
12 = 4k
divide both sides by coefficient of k
12÷4 = 4k ÷ 4
k=3
substitute 3 for k
therefore when
y is 48
and k is constant 3
then x will be:
48=3x²
divide both sides by coefficient of x²
48 divide by 3 = 3x² divide by 3
16=x²
take the square root of both sides
√16 = √x²
x = 4
The answer is (b+2)(a+3)
You have to group each like term but have them be able to separate evenly so when you do the foil method it goes back to the original equation.
-2x(-4)=8x
-9(-4)=36
8x+36 is the answer
