let the number of books she can buy be x
x ≤ 150/4
x ≤ 37.5 books
but x must be a whole number, so
x ≤ 37
if she buys 37 books, cost = 4(37) = 148, which is within her limit
if she buys 38 books, cost = 4(38) = 152 , which goes over her limit of 150
so x ≤ 37
single use: cost = 37.50n, where n is the number of uses
member use: cost = 285
we want 37.5n ≤ 285
divide by 37.5
n ≤ 285/37.5
n ≤ 7.6
but we can't have a partial visit, so consider
n = 7 or n = 8
Well, with the single use plan,
7 visits would cost 7(37.5) or $262.50 which is < 285
8 visits would cost 8(37.5) or $300 which is > 285
So for 8 or more visits, the membership plan would be best, for 7 or less the single use plan would be better.
Need help in math - Janet took a test that contained 328 questions. She answered...
math help - I need help solving this math problem, please: Problem: Angela's ...
Math - I need help solving this math problem, please: Problem: Angela's math ...
Math - You can answer any 8 questions from the 12 questions on an exam. In how ...
Geometry - I HAVE A QUESTION. When I post a question and there is now response ...
8th grade math - A quiz had only 3-point questions and four-point questions. ...
Criminology/Sociology - My instructor wants me to prepare 15 questions to use to...
math - Sally answered 90% of the math test questions and 80% of the history test...
english - for the article "DON'T LEAVE ME HERE TO DIE" i need to ask tought ...
math - Janet took a standardized test that contained 328 questions. She answered...