Respuesta :

Answer:

The amount of sugar needed to make 1 quart of lemonade is 1/12 cup.

Step-by-step explanation:

Given:

Alex made 4 quarts of lemonade using 1/3 cup of sugar.

Now, to determine the amount of sugar needed to make 1 quart of lemonade.

Let the amount of sugar needed to make 1 quart of lemonade = [tex]x[/tex].

So, by using the proportion we solve it:

[tex]\frac{quarts\ of \ lemonade}{cup\ of\ sugar} =\frac{quart\ of\ lemonade}{cup\ of\ sugar}[/tex]

[tex]\frac{4}{\frac{1}{3}} =\frac{1}{x}[/tex]

On solving we get:

[tex]x=\frac{\frac{1}{3}}{4}[/tex]

[tex]x=\frac{1}{12}[/tex]

So, cup of sugar = [tex]\frac{1}{12}[/tex]

Therefore, the amount of sugar needed to make 1 quart of lemonade is 1/12 cup.