Question

If Emily pours 7/9 of a pint of coffee in the cup, how much milk can a customer add to the cup?

Answer 1

Answer:  The answer is $\dfrac{2}{9}.$

Step-by-step explanation: Given in the question that Emily pours $\dfrac{7}{9}$ of a pint of coffee in the cup. We are to find the fraction of the milk that a customer can add to the cup.

Fraction of the pint of coffee in the cup is given by

$f_c=\dfrac{7}{9}.$

The fraction of the cup that is left unfilled will be

$f_u=1-\dfrac{7}{9}=\dfrac{9-7}{9}=\dfrac{2}{9}.$

Therefore, the fraction of the cup that can be filled with milk is

$f_m=f_u=\dfrac{2}{9}.$

Thus, the answer is $\dfrac{2}{9}.$

Answer 2

Answer:  A customer can add 2/9 of milk to the cup.

Step-by-step explanation:

Hi, to answer this we have to subtract the amount of coffee in the cup ( 7/9 of a pint) to the total capacity of the cup (1).

Mathematically speaking

1- 7/9 = 2/9

2/9 of a cup is the capacity left for adding milk.

A customer can add 2/9 of milk to the cup.

Feel free to ask for more if needed or if you did not understand something.