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

$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:

Now Joseph has two letters .

The weight of first letter  = 2.9 ounces

Cost of first letter =

                            =

Now , second letter  weighs 4.1 ounces

So, cost of second letter =

                                         =

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

1.84

Step-by-step explanation:

edge 2021

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49%

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