David uses 1/4 cups of apple juice for every 1/2 cup of carrot juice to make a fruit drink. enter the number of cups of apple juice david uses for 1 cup of carrot juice.

1/2 cups of apple juice David used for 1 cup of carrot juice

Step-by-step explanation:

David uses 1/4 cups of apple juice for every 1/2 cup of carrot juice to make a fruit drink.

Two 1/2 cups of carrot juice makes 1 cup of carrot juice

because

For each 1/2 cups of carrot juice David used 1/4 cups of apple juice

For 1 cup of carrot juice , two 1/2 cups of carrot juice used

so two 1/4 cups of apple juice should be used for 1 cup of carrot juice