Question

Chris wants to order DVDs over the internet. Each DVD cost $15.99 and shipping the entire order cost $9.99. If he can spend no more than $100, how many DVDs could he buy (they're inequality word problems)

Answer 1

Sorry if I get this wrong but I think 78??

Answer 2

Answer: The required number of DVDs that he could buy is 5.

Step-by-step explanation: Given that Chris wants to order DVDs over the internet and each DVD cost $15.99 and shipping the entire order cost $9.99.

He can spend no more than $100.

We are to find the number of DVDs that he could buy.

Let x represents the number of DVDs that he could buy.

Then, according to the given information, we have

`x* 15.99+9.99\leq 100\\\\\Rightarrow 15.99x\leq 100-9.99\\\\\Rightarrow 15.99x\leq 90.01\\\\\Rightarrow x\leq (90.01)/(15.99)\\\\\Rightarrow x\leq 5.62.`

Thus, the required number of DVDs that he could buy is 5.