fluid ounce
B. 11/20
fluid ounce
C. 27/31
fluid ounce
D. 1 13/50
fluid ounces
Answer: C. 27/31 fluid ounce
Step-by-step explanation:
First, let's turn the mixed number into a fraction:
Then, to solve the problem we can use a simple rule of three:
31/30 ----------3/10
3 ----------- x
This can be read as: If to make 31/30 fluid ounces of purple you need 3/10 fluid ounces of red, then to make 3 fluid ounces of purple how many fluid ounces of red will you need?
So, to make 3 fluid ounces of purple paint, Isabelle will need 27/31 fluid ounces of red paint.
it is not a function
for functions to work, there can only be one y value per x value aka if you see a set like this:
{(4,2), (6,5), (10,1), (3,6), (6,7)}
It is not a function because there are two y values (5 and 7) for one x value (6).