Can someone explain how to do this?

Matt has a $50 gift card to spend on books. If each book costs $12.99 with a price of $7.99 per shipping order of any size book, what's the most amount of books can he buy? The least?

Question

Can someone explain how to do this?

Matt has a $50 gift card to spend on books. If each book costs $12.99 with a price of $7.99 per shipping order of any size book, what's the most amount of books can he buy? The least?

jigglypuff314 · Answer

if you let number of books be represented by x
then  12.99x + 7.99x  ≤ 50
which can be simplified to 20.98x  ≤ 50

jigglypuff314 · Answer

or does it mean that 7.99 for shipping is not "per" book but "per" order?
if so
then it would be  12.99x + 7.99  ≤ 50

jigglypuff314 · Answer

then to find the max amount of books he can buy, solve for x
in  the inequalities, and if you get a decimal answer, round down.

anonymous · Answer

Well there two different answers then...the first one's 2 and the second's 3

jigglypuff314 · Answer

well kinda... whether it is 2 or 3 depends on how you would interpret the question
if it is 7.99 per group order it would be 3
if it is 7.99 per book shipping it would be 2

jigglypuff314 · Answer

and idk why they would ask the least number of book you can buy -.-
I mean, you can just not buy any right? so 0