Answer:
B 1 2/3
Step-by-step explanation:
Proportional relationships are relation by the equation
y =kx
Let y = sugar and x be flour
13 4/5 = k * 23
Change the mixed number to an improper fraction
13 4/5 = (5*13 +4)/5 =69/5
69/5 = 23k
Divide each side by 23
69/5 /23 = 23k/23
69/115 =k
The equation is
y = 69/115 x
We want 1 cup sugar
1 = 69/115 x
Solve for x
Multiply by 115/69
115/69 = x
Change to a mixed number
1 2/3
