Question

In three months, Harold watched a total of 40 movies. If he watched 12 movies in June and 13 movies in July, how many movies dos he watch in August? Write an equation using the varbiable a to model your work.

Answer 1

12+13+a = 40
25+a = 40
25-25+a = 40-25
a = 15

Answer 2

15 movies.

Explanation:

Let 'a' represent the number of movies in August.

We have been given that Harold watched 12 movies in June and 13 movies in July.

The movies watched by Harold in three months would be
`12+13+a`.

We are also told that Harold watched a total of 40 movies. We can represent this information in an equation as:

`12+13+a=40`

`25+a=40`

`25-25+a=40-25`

`a=15`

Therefore, Harold watched 15 movies in August.