Final answer:
To find the cost of 10 movies, we first determine the cost per movie by dividing $36 by 5, resulting in $7.20 per movie. Then, we multiply that cost by 10 to get the total cost for 10 movies, which is $72.00.
Step-by-step explanation:
Alexander bought 5 movies for a total of $36. We need to find the cost per movie to determine the total cost for 10 movies at the same rate. First, we divide the total cost by the number of movies he originally bought to find the cost per movie. So, $36 ÷ 5 = $7.20 per movie.
Then, to find the cost for 10 movies, we multiply the cost per movie by 10: $7.20 × 10 = $72. Therefore, the cost for 10 movies at this rate would be $72.
This example is similar to trading items, where we can trade two movies for another T-shirt, assuming T-shirts cost twice what a movie does. However, in the context of this question, we're simply scaling up the quantity while keeping the rate ($7.20 per movie) the same.