Answer:
k = 3
Step-by-step explanation:
Given that y and x are directly related then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition y = 81 when x = 27
k =
=
= 3
Answer:
x=0, -20/3.
Step-by-step explanation:
abs(3x+10)=10
3x+10=10, 3x+10=-10
3x=10-10, 3x=0, x=0/3, x=0,
3x=-10-10, 3x=-20, x=-20/3
Answer:
I think it would be 15
Step-by-step explanation:
Because if you split the number line into 6 different sections (with the 15 on the left side and the 16 on the right side) and shade/fill in 2 of those, you would be closer to 15.
There are 15 biography books and there are 48 books in total so the ratio is 15:48