The ratio of pineapple juice to sparkling water that Sylvia and her
friends used to make punch last week was 3 : 2. They used 4 quarts of
water last week. This week, Sylvia and her friends want to make three
times as much punch.
Is the relationship between the amount
of pineapple juice and the amount of
sparkling water proportional? Explain.
How much pineapple juice do Sylvia and
her friends need for this week’s punch?