Question

A 250 ml glass of cranberry juice provides 100% of the recommended daily intake of vitamin c. use a hundredths grid to model each solution. a) suppose that you drank two 250 ml glasses of cranberry juice with your breakfast. what percent of the recommended daily intake would you get? b) a 250 ml glass of grape juice provides 50% of the recommended daily intake of vitamin c. how many glasses of grape juice would you have to drink in a day to get 100% of the recommended daily intake of vitamin c?

Answer 1

Drinking two 250 ml glasses of cranberry juice provides 200% DV of Vitamin C. Two 250 ml glasses of grape juice are required to reach 100% DV.

Step-by-step explanation:

The student's questions pertain to the modeling of vitamin C intake using percentages and a daily value (DV) based on certain quantities of juice consumed.

a) Two 250 ml glasses of cranberry juice

If one 250 ml glass provides 100% of the recommended daily intake of vitamin C, drinking two 250 ml glasses would provide 200% of the DV. Model this by filling two 100-square grids completely to represent 200% DV. It's important to note that while this is over the recommended amount, more is not always better when it comes to vitamin intake.

b) Glasses of grape juice for 100% DV

Since a 250 ml glass of grape juice provides 50% DV of vitamin C, one must drink two 250 ml glasses of grape juice to reach 100% DV. Use a hundreds grid and fill half of it for each glass of grape juice to visually represent this.