Shailey, let's say you watch 5 movies. Then you get 2(5) = 10 points, right?

If we watch m movies, then we get 2m points total.

We need 100 points and have 40, so we need 100 - 40 more points.

Our equation is then 2m = 100 - 40.

2m = 60 after combining like terms.

Dividing both sides by 2, we get m = 30.

I need to see 30 more movies to earn a free movie.

Hope this helps!

David W.

tutor

You'll need to post it.

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02/21/16

Shailey H.

02/21/16