Valley Video charges a $15 annual fee plus $3 per movie for rentals. Last year, Jennifer spent $99 at the store. How many movies did she rent?

Answer 1

Jennifer rented 27 movies.

We seek a number of movies #x# such that the total cost for the year (#$99#) will equal the cost of the movie rentals (#$3x#) plus the cost for 1-year membership (#$15#).
This information models a linear relationship between the number of movies rented (#x#) and the amount spent in a year (#y#). For every 1 more movie, Jennifer pays 3 more dollars. This constant of "3 dollars per movie" can be considered the rate at which #y# responds to changes in #x#.

We employ the following equation for a linear model:

#y=kx+c#

whereby, in this instance,

We can solve for the fourth variable since we can enter values for three of these four variables using the information provided.

#color(white)(XXXX)$99=($3//movie) * x + $15# #color(white)(XXXX)$84=($3//movie) * x# #($84)/($3//movie)=x#
#"  "27" "movies = x#

That's our response, too.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer 2

Jennifer rented 28 movies.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

Not the question you need?

Drag image here or click to upload

Or press Ctrl + V to paste
Answer Background
HIX Tutor
Solve ANY homework problem with a smart AI
  • 98% accuracy study help
  • Covers math, physics, chemistry, biology, and more
  • Step-by-step, in-depth guides
  • Readily available 24/7