# Question #583f8

##### 2 Answers

I think you need to pay

#### Explanation:

You need to pay:

then you need to pay:

to add

(if you try only

giving a total of:

to reach a total weight of:

that is

#### Explanation:

Let's break down the information given:

We are given:

The cost for the first

The cost for every additional

We want to find:

I'm the cost for the postage when it weighs

We can write the following equation:

In this equation,

This makes sense because we were given that the first

Yet there is still something missing. We don't exactly know what

We can however, come up with this equation:

Here

We then solve for

Thus, we have an additional postage rate of

Lastly we need to find the cost. Recall the first equation and now we can plug in

So if the package weighs