Answer:
Step-by-step explanation:
If Francine uses 1/3 cup of pineapple juice for every 1/2 cup of orange juice to make a smoothie then:
1/3 cup of pineapple = 1/2cup of juice
We need to know the amount he will use for 1 cup of Orange juice, say;
x cup of pineapple = 1cup of Orange juice
Equating both
1/3 cup of pineapple = 1/2cup of juice
x cup of pineapple = 1cup of Orange juice
Cross multiply
1/2 × x = 1/3 × 1
x/2 = 1/3
3x = 2
x = 2/3
Hence he will need 2/3 cups of pineapple for 1 cup of Orange juice
