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.
Answer this Question
To Math Helpers please:Math 2 questions - I'll retype it, Ive been waiting ...
Need help in math - Janet took a test that contained 328 questions. She answered...
To nina -- English - Please post your own questions as new questions, not as ...
to kill a mockingbird - which details help the reaer understand that the jail ...
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(Factorial) - A women student is to answer 10 out of 13 questions on a test...
Science 7R - Worksheet (Q5) - ********* Sorry I post too much question but these...
Math - 1) Prove that for every x>=0 and 0<a<1 x^a-ax<=1-a 2)prove ...
GEOGRAPHY (URGENT!!!) - I NEED HELP!!! this is urgent!!! Human-Environmental ...