Marcia collected a number of used DVDs for the sale. There were 12 action movies, 7 comedies, and 8 animated films. she decided to put them on sale at 3 for $5. how many groups of 3 DVDs went on sale? How much money did they bring in?

12 + 7 + 8 = ?

? x 5 = $ How much money they brought

I'll be glad to check your answer.

To find the number of groups of 3 DVDs that went on sale, we need to determine the maximum number of groups we can make with the available DVDs.

First, let's determine the total number of DVDs Marcia collected:
12 action movies + 7 comedies + 8 animated films = 27 DVDs

Next, since each group contains 3 DVDs, we need to divide the total number of DVDs by 3:
27 DVDs ÷ 3 DVDs/group = 9 groups

Therefore, there were 9 groups of 3 DVDs that went on sale.

To calculate how much money the sale brought in, we need to determine the total revenue from selling each group for $5.

Since 3 DVDs were sold for $5, the price per DVD can be calculated by dividing $5 by 3:
$5 ÷ 3 DVDs/group ≈ $1.67 per DVD

Now, we can calculate the total revenue by multiplying the price per DVD by the total number of DVDs sold:
$1.67/DVD × 27 DVDs = $45.09

Therefore, the DVDs brought in approximately $45.09 in total.