Respuesta :
Answer : The number 3 oz oranges required is 7.
Explanation :
As we are given:
Recommended daily dose for vitamin C per day = 60 mg
So, recommended daily dose for vitamin C per week = 7 × 60 mg = 420 mg
Now we have to determine the number of 100 g oranges required in a week.
Number of 100 g oranges required in a week = [tex]\frac{\text{Vitamin C required}}{\text{Vitamin C in one 100g of orange}}[/tex]
Number of 100 g oranges required in a week = [tex]\frac{420mg}{70mg}=6[/tex]
Total mass of oranges = 6 × 100 g = 600 g
Now we have to determine the mass of one 3 oz orange in grams.
As, 1 oz = 28.35 g
So, 3 oz = 3 × 28.35 = 85.05 g
Now we have to determine the number 3 oz oranges required.
Number 3 oz oranges required = [tex]\frac{\text{Mass of orange required in grams}}{\text{Mass of one 3 oz orange in grams}}[/tex]
Number 3 oz oranges required = [tex]\frac{600g}{85.05g}=7.054\approx 7[/tex]
Therefore, the number 3 oz oranges required is 7.
