Final answer:
Giselle decreased her soda consumption from 48 ounces to 24 ounces, which is a 50% decrease. The percentage was calculated by dividing the decrease (24 ounces) by the original amount (48 ounces) and then multiplying by 100.
Step-by-step explanation:
The question asks us to calculate the percentage decrease in the amount of soda that Giselle drinks from one week to the next. Originally, Giselle drank 48 ounces of soda, and then decreased her consumption to 24 ounces the following week.
To find the percentage decrease, we first find the actual decrease in ounces, which is 48 ounces - 24 ounces = 24 ounces. Next, we divide this decrease by the original amount (48 ounces) and multiply by 100 to get the percentage:
- Decrease = Original Amount - New Amount = 48 oz - 24 oz = 24 oz
- Percentage Decrease = (Decrease / Original Amount) x 100 = (24 oz / 48 oz) x 100
- Percentage Decrease = 0.5 x 100 = 50%
Therefore, Giselle has decreased the amount of soda she drinks by 50%.