Question

Chad wants to buy some books over the Internet. Each book costs $10.01 and has a shipping cost of $9.96 per order. If Chad wants to spend no more than $50 for his books, which inequality shows the maximum number of books, p, that he can buy?
I added 10.01 and 9.96 together to get 19.97. I divided that by 50 and got 2.50.

Answer 1

Well, yes..19.97 is correct..but we put an 'x' next to that..

Answer 2

And it has to be less than or equal to 50..so what inequality should you write?

Answer 3

9.96p − 10.01p ≤ 50, so p ≤ 1
9.96p + 10.01p ≤ 50, so p ≤ 2
9.96 − 10.01p ≤ 50, so p ≤ 3
9.96 + 10.01p ≤ 50, so p ≤ 4

Answer 4

wow ok nevermind

Answer 5

Oh, you added 9.96 + 10.01..which is the same as 9.96p + 10.01p

Answer 6

So that's what we start with

Answer 7

So we can take out A and C.

Answer 8

Now solve it..\(19.97p \le 50\)

50 / 19.97 = ?

Answer 9

its less then or equil to

Answer 10

Oh..you said you got 2.5

Answer 11

So B is correct..we round down to 2..

Answer 12

but i just wanna ask if i should round that

Answer 13

'Cause we can't have 2 and a half books..and 3 would be too much..so we don't round up.

Answer 14

oh ok thank you