To find the unit rate of Elyse's fruit punch recipe, you want to determine how many cups of fruit punch mix are used per 1 cup of water.
The recipe states that for \( \frac{1}{2} \) cups of water, you need \( 10/3 \) cups of fruit punch mix.
To find out how many cups of fruit punch mix you would need for 1 cup of water, you can set up a proportion. Since you're starting with \( \frac{1}{2} \) cups and want to scale it up to 1 cup, you can find out what you need to multiply \( \frac{1}{2} \) by to get 1.
To find this multiplier, you can do:
\[ 1 \div \frac{1}{2} = 1 \times \frac{2}{1} = 2 \]
So, you need to multiply both the cups of water and the cups of fruit punch mix by 2.
Now, we can find the amount of fruit punch mix needed for 1 cup of water:
\[ \text{Fruit Punch Mix for 1 cup of water} = \frac{10}{3} \text{ cups} \times 2 = \frac{20}{3} \text{ cups} \]
Thus, for 1 cup of water, you would need \( \frac{20}{3} \) cups of fruit punch mix.
To summarize:
- 1 cup of water requires \( \frac{20}{3} \) cups of fruit punch mix.