Final answer:
Elena's toppings weighed 7 ounces more than Jada's, as the extra $3.50 she paid for her ice cream corresponds to 7 ounces of toppings at a rate of 50 cents per ounce.
Step-by-step explanation:
To solve how much more Elena's toppings weigh compared to Jada's, we need to look at the difference in their ice cream cost. The store charges $3.00 for an ice cream plus 50 cents per ounce of toppings. If Elena's ice cream costs $3.50 more than Jada's, this extra cost is entirely due to the difference in the weight of their toppings since the base price of the ice cream is the same for both.
Elena's extra cost due to toppings is $3.50. Since the store charges 50 cents per ounce, we can calculate the difference in weight by dividing the extra cost by the cost per ounce:
$3.50 ÷ $0.50/ounce = 7 ounces.
Therefore, Elena's toppings weighed 7 ounces more than Jada’s toppings.