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In a certain country, a letter up to 1 ounce requires postage in the amount of $0.42, and each additional ounce (or fraction of an ounce) has an additional cost. The function below represents the cost of mailing one letter in this country.

f(c)=0.42 + 0.20[x-1]


Josiah has two letters. The first weighs 2.9 ounces, and the second weighs 4.1 ounces. What is the total amount Josiah can expect to pay for postage?

$1.62

$1.64

$1.84

Verified Answer :

Answer:

$1.84

Step-by-step explanation:

We are given that a letter up to 1 ounce requires postage in the amount of $0.42, and each additional ounce (or fraction of an ounce) has an additional cost.

The function which represents the situation:

\(f(c)=0.42 + 0.20[x-1]\)

Now Joseph has two letters .

The weight of first letter  = 2.9 ounces

Cost of first letter = \(0.42 + 0.20[2.9-1]\)

                            = \(0.8\)

Now , second letter  weighs 4.1 ounces

So, cost of second letter = \(0.42 + 0.20[4.1-1]\)

                                         = \(1.04\)

Thus the total amount Josiah can expect to pay for postage = $0.8+$1.04

                                                                                                   =$1.84

Hence the total amount Josiah can expect to pay for postage is $1.84

                           

Answer:

$1.84

Step-by-step explanation:

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